GitLab

Add Generate DIR_METADATA files and remove metadata from OWNERS
files for //mojo.

R=rockot@google.com

Bug: 1113033
Change-Id: I6e12b602687b803c0270c86a0df3771b74c2e081
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454408
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Ken Rockot <rockot@google.com>
Reviewed-by: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#814680}