Change empty_enum_variants_with_brackets applicability to MaybeIncorrect

clippy_lints/src/empty_with_brackets.rs

@@ -97,7 +97,7 @@ fn check_variant(&mut self, cx: &EarlyContext<'_>, variant: &Variant) {
                         span_after_ident,
                         "remove the brackets",
                         "",
-                        Applicability::MachineApplicable,
+                        Applicability::MaybeIncorrect,
                     );
                 },
             );