[llvm] [InstrProf] Do not block functions from PGOUse (PR #71106)

[David Li via llvm-commits]

https://github.com/david-xl commented:

I think we should move the size/compiletime related logics outside of skipPGO. There is no point annotate PGO (and waste compile time) when instrumentation is skipped.

https://github.com/llvm/llvm-project/pull/71106