library: Use size_of from the prelude instead of imported

Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the
prelude instead of importing or qualifying them.

These functions were added to all preludes in Rust 1.80.

1 files changed, 2 insertions, 3 deletions

diff --git a/library/std/src/sys/alloc/windows/tests.rs b/library/std/src/sys/alloc/windows/tests.rs
index 674a3e1d92d..1d5614528b1 100644
--- a/library/std/src/sys/alloc/windows/tests.rs
+++ b/library/std/src/sys/alloc/windows/tests.rs
@@ -1,9 +1,8 @@
 use super::{Header, MIN_ALIGN};
-use crate::mem;
 
 #[test]
 fn alloc_header() {
     // Header must fit in the padding before an aligned pointer
-    assert!(mem::size_of::<Header>() <= MIN_ALIGN);
-    assert!(mem::align_of::<Header>() <= MIN_ALIGN);
+    assert!(size_of::<Header>() <= MIN_ALIGN);
+    assert!(align_of::<Header>() <= MIN_ALIGN);
 }