[llvm-branch-commits] [llvm] [CMake] Prune dead and unnecessary try_compiles from config.h (PR #223600)

[Alexis Engelke via llvm-branch-commits]

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

LGTM. I appreciate the efforts to reduce cmake times, they are annoyingly long right now.

https://github.com/llvm/llvm-project/pull/223600