fix: #128855 Ensure `Guard`'s `drop` method is removed at `opt-level=s` for `… fix: #128855 …Copy` types Added `#[inline]` to the `drop` method in the `Guard` implementation to ensure that the method is removed by the compiler at optimization level `opt-level=s` for `Copy` types. This change aims to align the method's behavior with optimization expectations and ensure it does not affect performance. r​? `@scottmcm`