GitLab

Also:
* Remove an out-of-date comment.
* Add binutils to install-build-deps.sh for readelf and grep.  We already use
  binutils in many places, and it's likely already installed everywhere, but
  it's good to list out direct dependencies.

BUG=850682
R=thakis

Change-Id: I80830ad42fe37f1b93f393f5a6ca5af68ef92998
Reviewed-on: https://chromium-review.googlesource.com/1157436Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579853}