Unreviewed, rolling out r147370.
http://trac.webkit.org/changeset/147370
https://bugs.webkit.org/show_bug.cgi?id=113850

This patch is causing crashes in video tests on all Mac bots.
(Requested by jernoble_ on #webkit).

Patch by Sheriff Bot <webkit.review.bot@gmail.com> on 2013-04-02

* html/HTMLMediaElement.cpp:
(WebCore::HTMLMediaElement::~HTMLMediaElement):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147521 268f45cc-cd09-0410-ab3c-d52691b4dbfc