Rollup merge of #120851 - carols10cents:patch-1, r=Mark-Simulacrum

Remove duplicate release note

Oopsie. See #120783 (comment)

Author: matthiaskrgr

RELEASES.md

@@ -7,7 +7,6 @@ Language
 --------
 - [Document Rust ABI compatibility between various types](https://github.com/rust-lang/rust/pull/115476/)
 - [Also: guarantee that char and u32 are ABI-compatible](https://github.com/rust-lang/rust/pull/118032/)
-- [Warn against ambiguous wide pointer comparisons](https://github.com/rust-lang/rust/pull/117758/)
 - [Add lint `ambiguous_wide_pointer_comparisons` that supersedes `clippy::vtable_address_comparisons`](https://github.com/rust-lang/rust/pull/117758)
 
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