diff --git a/library/std/src/sys_common/thread_local_key/tests.rs b/library/std/src/sys_common/thread_local_key/tests.rs
index 6f32b858f09..6a44c65d918 100644
--- a/library/std/src/sys_common/thread_local_key/tests.rs
+++ b/library/std/src/sys_common/thread_local_key/tests.rs
@@ -1,24 +1,6 @@
-use super::{Key, StaticKey};
+use super::StaticKey;
 use core::ptr;
 
-fn assert_sync<T: Sync>() {}
-fn assert_send<T: Send>() {}
-
-#[test]
-fn smoke() {
-    assert_sync::<Key>();
-    assert_send::<Key>();
-
-    let k1 = Key::new(None);
-    let k2 = Key::new(None);
-    assert!(k1.get().is_null());
-    assert!(k2.get().is_null());
-    k1.set(ptr::invalid_mut(1));
-    k2.set(ptr::invalid_mut(2));
-    assert_eq!(k1.get() as usize, 1);
-    assert_eq!(k2.get() as usize, 2);
-}
-
 #[test]
 fn statik() {
     static K1: StaticKey = StaticKey::new(None);