cc: Remove ValidateRenderSurfaces debug check

cc: Remove ValidateRenderSurfaces debug check

This function is trying to test when a layer should have a render
surface by partially duplicating / reimplementing logic from
ShouldHaveRenderSurface.  It creates render surfaces, then in the same
stack checks to see if a render surface should have been created, but it
doesn't use the exact same logic.  (This is likely what is causing it
to fail.)

Rather than trying to make it equal, remove this test, as render
surface creation is already well-tested in unit tests.

BUG=457217
Committed: https://crrev.com/1e447ad6426b03803cf6cf091ffc8edede265e71
Cr-Commit-Position: refs/heads/master@{#315703}

[enne (OOO), 2015-02-10 18:47:52]

enne@chromium.org changed reviewers:
+ vollick@chromium.org

[Ian Vollick, 2015-02-11 00:01:02]

On 2015/02/10 18:47:56, enne wrote:

I understand why this check was added, but I agree that we could do without,
especially if it's a maintenance burden.

lgtm.

[Ian Vollick, 2015-02-11 00:01:05]

The CQ bit was checked by vollick@chromium.org

[commit-bot: I haz the power, 2015-02-11 00:02:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/913793002/1

[commit-bot: I haz the power, 2015-02-11 01:33:39]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-11 01:34:23]

Patchset 1 (id:??) landed as
https://crrev.com/1e447ad6426b03803cf6cf091ffc8edede265e71
Cr-Commit-Position: refs/heads/master@{#315703}