Remove entries from TestExpectations that were copied into test_expectations_w3c.txt.
Remove entries from TestExpectations that were copied into test_expectations_w3c.txt.

This is in preparation for rolling to a new version of the W3C repos.

TBR=abarth@chromium.org

Review URL: https://codereview.chromium.org/226583002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@170924 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs