compiler_wrapper: remove some flags from unsupport clang flags

LLVM implemented some flags that used to not be supported. Remove these
flags from unsupported flags in the wrapper.

BUG=chromium:1112929
TEST=tested locally.

Change-Id: If91df0d35ac3db926067d3e0c5e213f6c5e3f390
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2346956
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Jian Cai <jiancai@google.com>
33 files changed