Remove sycl 1.2.1 code#16118

AlexeySachkov merged 3 commits intointel:syclintel/llvm:syclfrom

dklochkov-emb:sycl-remove-unsupported-1.2.1-codedklochkov-emb/llvm:sycl-remove-unsupported-1.2.1-codeCopy head branch name to clipboard