remove class "class" from Cancel class attribute

mkt/ratings/templates/ratings/add.html

@@ -27,7 +27,7 @@
       {% endif %}
       <p class="form-footer submit-review c">
         <div class="two-up">
-          <a href="#" class="button fat alt class">{{ _('Cancel') }}</a>
+          <a href="#" class="button fat alt cancel">{{ _('Cancel') }}</a>
         </div>
         <div class="two-up">
           <button disabled type="submit" class="fat">