Remove Evan from chromium gtk OWNERS.

BUG=none
TEST=none


Review URL: http://codereview.chromium.org/10107006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@132510 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/gtk/OWNERS

 # You can only be a GTK owner if your name starts with "e".
 erg@chromium.org
 estade@chromium.org
-evan@chromium.org