diff --git a/test_suite/tests/expand/de_enum.expanded.rs b/test_suite/tests/expand/de_enum.expanded.rs
index 0207a912..0aa879e7 100644
--- a/test_suite/tests/expand/de_enum.expanded.rs
+++ b/test_suite/tests/expand/de_enum.expanded.rs
@@ -332,25 +332,6 @@ const _: () = {
                         )),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "Unit" => _serde::__private::Ok(__Field::__field0),
-                        "Seq" => _serde::__private::Ok(__Field::__field1),
-                        "Map" => _serde::__private::Ok(__Field::__field2),
-                        "_Unit2" => _serde::__private::Ok(__Field::__field3),
-                        "_Seq2" => _serde::__private::Ok(__Field::__field4),
-                        "_Map2" => _serde::__private::Ok(__Field::__field5),
-                        _ => _serde::__private::Err(_serde::de::Error::unknown_variant(
-                            __value, VARIANTS,
-                        )),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -373,28 +354,6 @@ const _: () = {
                         }
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"Unit" => _serde::__private::Ok(__Field::__field0),
-                        b"Seq" => _serde::__private::Ok(__Field::__field1),
-                        b"Map" => _serde::__private::Ok(__Field::__field2),
-                        b"_Unit2" => _serde::__private::Ok(__Field::__field3),
-                        b"_Seq2" => _serde::__private::Ok(__Field::__field4),
-                        b"_Map2" => _serde::__private::Ok(__Field::__field5),
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(_serde::de::Error::unknown_variant(
-                                __value, VARIANTS,
-                            ))
-                        }
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
@@ -632,21 +591,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_str<__E>(
-                                    self,
-                                    __value: &'de str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "a" => _serde::__private::Ok(__Field::__field0),
-                                        "b" => _serde::__private::Ok(__Field::__field1),
-                                        "c" => _serde::__private::Ok(__Field::__field2),
-                                        "d" => _serde::__private::Ok(__Field::__field3),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                                 fn visit_bytes<__E>(
                                     self,
                                     __value: &[u8],
@@ -662,21 +606,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_bytes<__E>(
-                                    self,
-                                    __value: &'de [u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"a" => _serde::__private::Ok(__Field::__field0),
-                                        b"b" => _serde::__private::Ok(__Field::__field1),
-                                        b"c" => _serde::__private::Ok(__Field::__field2),
-                                        b"d" => _serde::__private::Ok(__Field::__field3),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                             }
                             impl<'de> _serde::Deserialize<'de> for __Field {
                                 #[inline]
@@ -1165,21 +1094,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_str<__E>(
-                                    self,
-                                    __value: &'de str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "a" => _serde::__private::Ok(__Field::__field0),
-                                        "b" => _serde::__private::Ok(__Field::__field1),
-                                        "c" => _serde::__private::Ok(__Field::__field2),
-                                        "d" => _serde::__private::Ok(__Field::__field3),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                                 fn visit_bytes<__E>(
                                     self,
                                     __value: &[u8],
@@ -1195,21 +1109,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_bytes<__E>(
-                                    self,
-                                    __value: &'de [u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"a" => _serde::__private::Ok(__Field::__field0),
-                                        b"b" => _serde::__private::Ok(__Field::__field1),
-                                        b"c" => _serde::__private::Ok(__Field::__field2),
-                                        b"d" => _serde::__private::Ok(__Field::__field3),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                             }
                             impl<'de> _serde::Deserialize<'de> for __Field {
                                 #[inline]
diff --git a/test_suite/tests/expand/default_ty_param.expanded.rs b/test_suite/tests/expand/default_ty_param.expanded.rs
index f3de6dba..d24ce254 100644
--- a/test_suite/tests/expand/default_ty_param.expanded.rs
+++ b/test_suite/tests/expand/default_ty_param.expanded.rs
@@ -92,18 +92,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -116,18 +104,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
@@ -296,18 +272,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -320,18 +284,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
diff --git a/test_suite/tests/expand/generic_enum.expanded.rs b/test_suite/tests/expand/generic_enum.expanded.rs
index 4d309d40..d2d8658d 100644
--- a/test_suite/tests/expand/generic_enum.expanded.rs
+++ b/test_suite/tests/expand/generic_enum.expanded.rs
@@ -174,23 +174,6 @@ const _: () = {
                         )),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "Unit" => _serde::__private::Ok(__Field::__field0),
-                        "NewType" => _serde::__private::Ok(__Field::__field1),
-                        "Seq" => _serde::__private::Ok(__Field::__field2),
-                        "Map" => _serde::__private::Ok(__Field::__field3),
-                        _ => _serde::__private::Err(_serde::de::Error::unknown_variant(
-                            __value, VARIANTS,
-                        )),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -211,26 +194,6 @@ const _: () = {
                         }
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"Unit" => _serde::__private::Ok(__Field::__field0),
-                        b"NewType" => _serde::__private::Ok(__Field::__field1),
-                        b"Seq" => _serde::__private::Ok(__Field::__field2),
-                        b"Map" => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(_serde::de::Error::unknown_variant(
-                                __value, VARIANTS,
-                            ))
-                        }
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
@@ -410,19 +373,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_str<__E>(
-                                    self,
-                                    __value: &'de str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "x" => _serde::__private::Ok(__Field::__field0),
-                                        "y" => _serde::__private::Ok(__Field::__field1),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                                 fn visit_bytes<__E>(
                                     self,
                                     __value: &[u8],
@@ -436,19 +386,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_bytes<__E>(
-                                    self,
-                                    __value: &'de [u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"x" => _serde::__private::Ok(__Field::__field0),
-                                        b"y" => _serde::__private::Ok(__Field::__field1),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                             }
                             impl<'de> _serde::Deserialize<'de> for __Field {
                                 #[inline]
diff --git a/test_suite/tests/expand/generic_struct.expanded.rs b/test_suite/tests/expand/generic_struct.expanded.rs
index fadecf6d..d57460c3 100644
--- a/test_suite/tests/expand/generic_struct.expanded.rs
+++ b/test_suite/tests/expand/generic_struct.expanded.rs
@@ -88,18 +88,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -112,18 +100,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
@@ -292,18 +268,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -316,18 +280,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
diff --git a/test_suite/tests/expand/lifetimes.expanded.rs b/test_suite/tests/expand/lifetimes.expanded.rs
index 9a13fb50..f8ec1df7 100644
--- a/test_suite/tests/expand/lifetimes.expanded.rs
+++ b/test_suite/tests/expand/lifetimes.expanded.rs
@@ -151,23 +151,6 @@ const _: () = {
                         )),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "LifetimeSeq" => _serde::__private::Ok(__Field::__field0),
-                        "NoLifetimeSeq" => _serde::__private::Ok(__Field::__field1),
-                        "LifetimeMap" => _serde::__private::Ok(__Field::__field2),
-                        "NoLifetimeMap" => _serde::__private::Ok(__Field::__field3),
-                        _ => _serde::__private::Err(_serde::de::Error::unknown_variant(
-                            __value, VARIANTS,
-                        )),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -188,26 +171,6 @@ const _: () = {
                         }
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"LifetimeSeq" => _serde::__private::Ok(__Field::__field0),
-                        b"NoLifetimeSeq" => _serde::__private::Ok(__Field::__field1),
-                        b"LifetimeMap" => _serde::__private::Ok(__Field::__field2),
-                        b"NoLifetimeMap" => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(_serde::de::Error::unknown_variant(
-                                __value, VARIANTS,
-                            ))
-                        }
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
@@ -296,18 +259,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_str<__E>(
-                                    self,
-                                    __value: &'de str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                                 fn visit_bytes<__E>(
                                     self,
                                     __value: &[u8],
@@ -320,18 +271,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_bytes<__E>(
-                                    self,
-                                    __value: &'de [u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                             }
                             impl<'de> _serde::Deserialize<'de> for __Field {
                                 #[inline]
@@ -504,18 +443,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_str<__E>(
-                                    self,
-                                    __value: &'de str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                                 fn visit_bytes<__E>(
                                     self,
                                     __value: &[u8],
@@ -528,18 +455,6 @@ const _: () = {
                                         _ => _serde::__private::Ok(__Field::__ignore),
                                     }
                                 }
-                                fn visit_borrowed_bytes<__E>(
-                                    self,
-                                    __value: &'de [u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
                             }
                             impl<'de> _serde::Deserialize<'de> for __Field {
                                 #[inline]
diff --git a/test_suite/tests/expand/named_map.expanded.rs b/test_suite/tests/expand/named_map.expanded.rs
index 6a93e6f4..1a621b57 100644
--- a/test_suite/tests/expand/named_map.expanded.rs
+++ b/test_suite/tests/expand/named_map.expanded.rs
@@ -117,20 +117,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "a" => _serde::__private::Ok(__Field::__field0),
-                        "b" => _serde::__private::Ok(__Field::__field1),
-                        "c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -145,20 +131,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"a" => _serde::__private::Ok(__Field::__field0),
-                        b"b" => _serde::__private::Ok(__Field::__field1),
-                        b"c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
@@ -429,20 +401,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "a" => _serde::__private::Ok(__Field::__field0),
-                        "b" => _serde::__private::Ok(__Field::__field1),
-                        "c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -457,20 +415,6 @@ const _: () = {
                         _ => _serde::__private::Ok(__Field::__ignore),
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"a" => _serde::__private::Ok(__Field::__field0),
-                        b"b" => _serde::__private::Ok(__Field::__field1),
-                        b"c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]
diff --git a/test_suite/tests/expand/void.expanded.rs b/test_suite/tests/expand/void.expanded.rs
index e1b3994e..65c3d2c6 100644
--- a/test_suite/tests/expand/void.expanded.rs
+++ b/test_suite/tests/expand/void.expanded.rs
@@ -64,19 +64,6 @@ const _: () = {
                         )),
                     }
                 }
-                fn visit_borrowed_str<__E>(
-                    self,
-                    __value: &'de str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        _ => _serde::__private::Err(_serde::de::Error::unknown_variant(
-                            __value, VARIANTS,
-                        )),
-                    }
-                }
                 fn visit_bytes<__E>(
                     self,
                     __value: &[u8],
@@ -93,22 +80,6 @@ const _: () = {
                         }
                     }
                 }
-                fn visit_borrowed_bytes<__E>(
-                    self,
-                    __value: &'de [u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(_serde::de::Error::unknown_variant(
-                                __value, VARIANTS,
-                            ))
-                        }
-                    }
-                }
             }
             impl<'de> _serde::Deserialize<'de> for __Field {
                 #[inline]