The tests crash on Nvidia in the driver.

Bug: 945415
Change-Id: I0f635eb5d99ecaeeaff055793b1b5fd3a314b055
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1548440
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>