compiler_wrapper: remove "-pass-exit-codes" in wrapper

Handling(ignoring) of "-pass-exit-codes" flag is no longer
needed in compiler wrapper.

BUG=chromium:979911
TEST=CL:2597389 passed CQ/SDK tests

Change-Id: I0114b745eed6d5dbcba10e2ecfb13d1882df32bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2597141
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
6 files changed