GitLab

Remove references to mash.

BUG=none
TEST=none

Change-Id: I02c85b4cae87d343bd0adb0cdb7cd00be4884477
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1635875Reviewed-by: James Cook <jamescook@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664455}