Revert 10f3296dd7d74c975f208a8569221dc8f96d1db1 - [openmp] Fix warnings when building on Windows with latest MSVC or Clang ToT (#77853)

It broke the AMDGPU buildbot: https://lab.llvm.org/buildbot/#/builders/193/builds/45378

GitOrigin-RevId: 94f960925b7f609636fc2ffd83053814d5e45ed1
8 files changed