[libc-commits] [libc] [libc] Remove atomic alignment diagnostics globally (PR #96803)

[Nick Desaulniers via libc-commits]

https://github.com/nickdesaulniers approved this pull request.

Patch LGTM; but please wait for @petrhosek to confirm that he's ok with this approach for Fuchsia.

Perhaps we only want to set this for 32b arm?

https://github.com/llvm/llvm-project/pull/96803