removing link to discarded page Responsive Layout Helpers

Author: MauriceG

docs/api/data-attributes.html

@@ -432,7 +432,6 @@ <h3>More in this section</h3>
 					<li><a href="../../docs/api/globalconfig.html">Configuring defaults</a></li>
 					<li><a href="../../docs/api/events.html">Events</a></li>
 					<li><a href="../../docs/api/methods.html">Methods &amp; Utilities</a></li>
-					<li><a href="../../docs/api/mediahelpers.html">Responsive layout</a></li> 
 					<li data-theme="a"><a href="../../docs/api/data-attributes.html">Data attribute reference</a></li>
 					<li><a href="../../docs/api/themes.html">Theme framework</a></li>
 				</ul>