[libc-commits] [libc] [libc] Remove faccessat entrypoint if faccessat2 syscall is not available (PR #164936)

[Michael Jones via libc-commits]

https://github.com/michaelrj-google approved this pull request.

LGTM, we should look into adding this for other architectures as well in a followup

https://github.com/llvm/llvm-project/pull/164936