'Un-favorites the status specified in the ID parameter as the authenticating user.
Returns the un-favorited status in the requested format when successful.
The twitter.Api instance must be authenticated.
Args:
The twitter.Status to unmark as a favorite.
Returns:
A twitter.Status instance representing the newly-unmarked favorite.'

def DestroyFavorite(self, status):

    url = (TWITTER_API_ROOT + ('favorites/destroy/%s.json' % status.id))
    json = self._FetchUrl(url, post_data={})
    data = simplejson.loads(json)
    self._CheckForTwitterError(data)
    return Status.NewFromJsonDict(data)
