Lift WebGL/ANGLE/Vulkan/Win suppression.

The test appears to be passing in ToT. Unknown what fixed it.

Bug: angleproject:2987
Change-Id: I6ac001694893d629883019331e5c73d40fd27af1
Tbr: kbr@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/1464109
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Cr-Commit-Position: refs/heads/master@{#630978}
1 file changed