[libc-commits] [libc] [libc][errno] Use macro instead of system header (PR #91150)

[Robin Caloudis via libc-commits]

robincaloudis wrote:

> Thanks for the update! Do you mind removing `#include <errno.h>` in https://github.com/llvm/llvm-project/blob/main/libc/src/errno/libc_errno.cpp#L40 also.

Good catch! Done. 

https://github.com/llvm/llvm-project/pull/91150