Remove expected results for test which no longer exists

two-properties-in-keyframed-animation.html was removed in r@159233

See https://codereview.chromium.org/26696002

TBR=ajuma

Review URL: https://codereview.chromium.org/74683002

git-svn-id: svn://svn.chromium.org/blink/trunk@162163 bbb929c8-8fbe-4397-9dbb-9b2b20218538