This will clear the way to put the GLES3 tests on the bots.

BUG=angleproject:1071
BUG=510822

Change-Id: I65fc917425531f6c080bcc862802d25af10cf265
Reviewed-on: https://chromium-review.googlesource.com/287164Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>