Reviewed by Dan Bernstein.

        Clean up transition tests
        https://bugs.webkit.org/show_bug.cgi?id=59410

        General test cleanup: use the named variables as
        arguments to runTransitionTest() for readability,
        remove unnecessary titles and meta tags, remove
        style and script tag attributes etc. No substantive
        changes.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@84875 268f45cc-cd09-0410-ab3c-d52691b4dbfc