Reverts rust-lang#92135 because perf regression

Author: AngelicosPhosphoros

library/core/src/any.rs

@@ -616,7 +616,6 @@ impl TypeId {
     /// assert_eq!(is_string(&0), false);
     /// assert_eq!(is_string(&"cookie monster".to_string()), true);
     /// ```
-    #[inline]
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[rustc_const_unstable(feature = "const_type_id", issue = "77125")]