Revert "[OPENMP][NVPTX]Fix barriers and parallel level counters, NFC."

This reverts commit r361421 to split the patch into 3 parts.

git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@361638 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed