Revert "kernel: Check HIP support of clang before disabling it" This reverts commit62c1374385
. Revert "kernel: Force disable LLVM HIP" This reverts commitef68678120
. Revert "kernel: Force disable LLVM CUDA" This reverts commitba14020f85
. Change-Id: I5cb2b4624eb0ec25dbc8c1b5888708d961ae59d7