[clang] [libc] [llvm] [OpenMP][libc] Remove special handling for OpenMP printf (PR #98940)

[Joseph Huber via cfe-commits]

jhuber6 wrote:

> Do we have tests that cover these cases?

There's already `printf` related tests AFAIK, this just changes the implementation. I could add more if needed.

https://github.com/llvm/llvm-project/pull/98940