Kill chrome/test/data/extensions/OWNERS. No need for us to police test files.

BUG=no

Review URL: https://chromiumcodereview.appspot.com/23442007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221515 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/data/extensions/OWNERS

-set noparent
-
-# This should match chrome/browser/extensions/OWNERS
-asargent@chromium.org
-benwells@chromium.org
-finnur@chromium.org
-jyasskin@chromium.org
-kalman@chromium.org
-koz@chromium.org
-mek@chromium.org
-miket@chromium.org
-mpcomplete@chromium.org
-yoz@chromium.org