compiler_wrapper: Drop "-fno-experimental-pass-manager"

new pass manager is already default in upstream llvm and
fixes have been made to broken features.
So stop using the old pass manager with sanitizers.

BUG=b:210661138
TEST=CQ

Change-Id: Ia73f6c89a095a5cac4d8d175afd6ff18edd200a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/3319340
Reviewed-by: Ryan Beltran <ryanbeltran@chromium.org>
Reviewed-by: Christopher Di Bella <cjdb@google.com>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Manoj Gupta <manojgupta@chromium.org>
5 files changed