[libcxx-commits] [libcxx] [libc++] Remove dead code from the locale base API and support code (PR #89070)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne commented:

It feels like there's more than one change in here. First we're removing dead code, and second we're making extern "C" functions be C++ linkage functions. Can we split the change into two?

https://github.com/llvm/llvm-project/pull/89070