common.sh: move get_variable to single user
We migrated all other users of this API to chromite. Localize
this to the single caller left to get it out of common.sh.
BUG=None
TEST=CQ passes
Change-Id: Ic7329544dc91ac2195aa51445e9cc61e79cb03c9
Reviewed-on: https://chromium-review.googlesource.com/1759161
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
2 files changed
