Disable failing GoogleWifiTrace3Mbps.

Disables BweFeedbackTest.GoogleWifiTrace3Mbps instead of
BweSimulation.GoogleWifiTrace3Mbps.

TBR=stefan@webrtc.org
BUG=3277

Review URL: https://webrtc-codereview.appspot.com/20389005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6017 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed