[clang] [clang] Do not diagnose unused deleted operator delete[] (PR #134357)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

> > LGTM but do we need a release note?
> 
> No, it is a fix for a regression caused by a patch committed a couple of days ago.

Excellent, thank you for confirming! LG as-is

https://github.com/llvm/llvm-project/pull/134357