common.sh: drop support for .chromeos_dev

No one seems to be using this, so punt it.

BUG=None
TEST=CQ passes

Change-Id: Ie9685b29813856e2169751d98ffd859fe7fecd83
Reviewed-on: https://chromium-review.googlesource.com/1764954
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
1 file changed