[libc-commits] [libc] [libc] move abs_timesout and monotonicity out of linux dir (PR #167719)

[Schrodinger ZHU Yifan via libc-commits]

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

LGTM. Thank you for doing this.

https://github.com/llvm/llvm-project/pull/167719