Disabling realtimecomm_GTalkPlayground (in HWQual).

A test issue is keeping this from passing, tracking by crosbug.com/3001.

Change-Id: Icfd6524cf4e8247d2b8320e9f02a3944cd064e3f

BUG=chromium-os:3001
TEST=

Review URL: http://codereview.chromium.org/6870010
1 file changed