Chromium dropped this a while back. This'll prepare switching the bot to GN.

NOTRY=true

Bug: chromium:726584
Change-Id: I55d7ef7ae33b66c1ca6721acba018aa19438e2da
Reviewed-on: https://chromium-review.googlesource.com/519404
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45631}