Intel and AMD drivers have trouble clearing textures without causing
corruption. NVidia, on the other hand, can handle.

Bug: angleproject:1074
Change-Id: Id9d293eba92f80e2af3a0d2e40cbeccb127763b9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2092838Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>