Remove recently added images - will convert to ref test instead

TBR=leviw@chromium.org
BUG=263266

Review URL: https://codereview.chromium.org/19495005

git-svn-id: svn://svn.chromium.org/blink/trunk@154759 bbb929c8-8fbe-4397-9dbb-9b2b20218538