This small error in dEQP triggers a warning that was recently
enabled in Chromium builds. We should remove the suppression once
we fix dEQP.

BUG=angleproject:1271

Change-Id: I9df3a304043b6decc00440103d105c9de76dc2db
Reviewed-on: https://chromium-review.googlesource.com/320320Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Tryjob-Request: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>