GitLab

This pref is deprecated since M43 and can now be removed.

TBR=jzw

Change-Id: Ie01b4946af6453f786aa05a348ce51c8e3477f39
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1787782
Commit-Queue: David Roger <droger@chromium.org>
Reviewed-by: Monica Basta <msalama@chromium.org>
Cr-Commit-Position: refs/heads/master@{#695101}