Durandal: remove count from clear completed button

examples/durandal/js/views/list.html

@@ -31,6 +31,6 @@
 		</li>
 	</ul>
 	<button id="clear-completed" data-bind="visible: completedCount, click: removeCompleted">
-		Clear completed (<span data-bind="text: completedCount"></span>)
+		Clear completed
 	</button>
 </footer>