Remove bug 21054 from known list.
Remove bug 21054 from known list.

BUG=21054
TEST=None

Review URL: http://codereview.chromium.org/391081

git-svn-id: http://src.chromium.org/svn/trunk/src@32128 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e189f86d266016d7db632c0813a3bfc0a2eef4de
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser