Seems to be failing a WebGL/ES2 CTS test in D3D9:

conformance/ogles/GL/mat3/mat3_001_to_006

BUG=angleproject:1116
BUG=525188

This reverts commit 83f3411d.

Change-Id: Ic186f51240dbdd96ccab3f5470329cdc9727c618
Reviewed-on: https://chromium-review.googlesource.com/295730Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>