Remove the faulure expectation of websocket-handshake layout test.
Remove the faulure expectation of websocket-handshake layout test.

The layout test was fixed at [1] but TestExpectation was not updated.

1: https://src.chromium.org/viewvc/blink?view=rev&revision=182670

BUG=417619
R=hiroshige

Review URL: https://codereview.chromium.org/602163005

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@182733 bbb929c8-8fbe-4397-9dbb-9b2b20218538

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk