Causes a warning on Windows:

compiler\translator\ValidateOutputs.cpp(37): warning C4804: '>' : unsafe use of type 'bool' in operation

BUG=angleproject:1070

This reverts commit 140941d0.

Change-Id: Ieed42cdda22f17c6e15c38ee1c059184869e6919
Reviewed-on: https://chromium-review.googlesource.com/286820Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>