[OpenMP] Remove LLVM_ENABLE_PROJECTS=openmp build mode#176950

Meinersbur merged 2 commits intollvm:mainllvm/llvm-project:mainfrom

Meinersbur:openmp_remove-LLVM_ENABLE_PROJECTS-build_3Meinersbur/llvm-project:openmp_remove-LLVM_ENABLE_PROJECTS-build_3Copy head branch name to clipboard