Caused WebGL CTS failures on the texture-npot test:
https://www.khronos.org/registry/webgl/sdk/tests/conformance/textures/texture-npot.html

This reverts commit c67e6e9f.

Change-Id: I089e99859231e0d657084ac3647257c650a9da92
Reviewed-on: https://chromium-review.googlesource.com/243041Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>