common.sh: move user_* helpers out to single user
The only users of these APIs are enter_chroot (and make_chroot),
so move the funcs out of common.sh and to the respective script.
BUG=None
TEST=CQ passes
Change-Id: I4917e1538cb6e80a4e0c455253f12a353d704bd2
Reviewed-on: https://chromium-review.googlesource.com/1791262
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>
3 files changed
