[libcxx-commits] [libcxx] [libc++] Remove workaround which allows setting _LIBCPP_OVERRIDABLE_FUNC_VIS externally (PR #113139)

[Nico Weber via libcxx-commits]

nico wrote:

I filed https://github.com/llvm/llvm-project/issues/117571 asking for a revert of this PR.

https://github.com/llvm/llvm-project/pull/113139