GitLab

Since the PyAuto tests are gone for WebRTC, remove
all references to them so they don't confuse developers.

BUG=225698

Review URL: https://chromiumcodereview.appspot.com/23908004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@222003 0039d316-1c4b-4281-b951-d872f2087c98