Rollup merge of rust-lang#119836 - hi-rustin:rustin-patch-docs-blank-line, r=ChrisDenton

chore: remove unnecessary blank line

It seems no need to add an unnecessary line here.

Author: matthiaskrgr

alloc/src/raw_vec.rs

@@ -552,7 +552,6 @@ fn handle_reserve(result: Result<(), TryReserveError>) {
 // `> isize::MAX` bytes will surely fail. On 32-bit and 16-bit we need to add
 // an extra guard for this in case we're running on a platform which can use
 // all 4GB in user-space, e.g., PAE or x32.
-
 #[inline]
 fn alloc_guard(alloc_size: usize) -> Result<(), TryReserveError> {
     if usize::BITS < 64 && alloc_size > isize::MAX as usize {