This test is having flaky timeouts on the bots. Disable it for now.
The re-land fixes the test syntax, and ensures we will see any errors
in test config as test failures on the bots.

BUG=angleproject:1107
TEST=angle_deqp_gles2_tests runs

Change-Id: Ia4fa8affb70e4474d8e43ff87ee86328aa47ebeb
Reviewed-on: https://chromium-review.googlesource.com/289580Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>