Remove stray comment and lines for tests that now pass.

TBR=dpanke@chromium.org
BUG=266798

Review URL: https://codereview.chromium.org/21720011

git-svn-id: svn://svn.chromium.org/blink/trunk@155488 bbb929c8-8fbe-4397-9dbb-9b2b20218538