[libcxx-commits] [libcxx] [libc++][modules] Fix disabling Unicode (PR #81294)

[Mark de Wever via libcxx-commits]

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

Thanks for the patch! I'll directly land this since I'd like to backport this to the release branch.

https://github.com/llvm/llvm-project/pull/81294