GitLab

Deletes google_play_services_library GN variable. This should reduce
compile times a bit, but mostly is just a good idea in general.

Change-Id: Ia991772db4a8549490926ad46808ceefaf12853f
Reviewed-on: https://chromium-review.googlesource.com/585450
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Lambros Lambrou <lambroslambrou@chromium.org>
Reviewed-by: Paul Miller <paulmiller@chromium.org>
Reviewed-by: Maria Khomenko <mariakhomenko@chromium.org>
Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
Reviewed-by: Michael Case <mikecase@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#490968}