[libcxx-commits] [libcxx] Revert "Actually disable the module generation tests." (PR #84527)

[Mark de Wever via libcxx-commits]

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

Thanks LGTM!

I've manually verified the module test runs and passes with the C++26 build again. 

https://github.com/llvm/llvm-project/pull/84527