Remove two layout test expectations due to new baseline.
Remove two layout test expectations due to new baseline.

V8 version 3.20.3 has been rolled and it therefore fits again to the new baseline of these two tests.

Review URL: https://chromiumcodereview.appspot.com/18277007

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@153685 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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