GitLab

The former has been moved to platform2/arc/setup. The latter
is not used anymore.

BUG=chromium:1163122
TEST=try

Change-Id: I104a468668b7e56087740818ef5cdf93a370f761
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2613398
Commit-Queue: Yusuke Sato <yusukes@chromium.org>
Reviewed-by: Yury Khmel <khmel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846270}