Fixed #8959 -- Removed redundant calls to the 'escape' template filter in the...

Fixed #8959 -- Removed redundant calls to the 'escape' template filter in the django.contrib.comments templates. Thanks, zgoda

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9000 bcc190cf-cafb-0310-a4f2-bffc1f526a37