remove duplicate tag in atom response

include/api.php

@@ -515,7 +515,6 @@
 				'user' =>  $status_user ,
 				'objecttype' => $item['object-type'],
 				'verb' => $item['verb'],
-				'conversation' => $a->get_baseurl() . '/display/' . $status_user['screen_name'] . '/' . $item['id'],
 				'self' => $a->get_baseurl()."/api/statuses/show/".$ite['id'].".".$type,
 				'edit' => $a->get_baseurl()."/api/statuses/show/".$ite['id'].".".$type,				
 			);

view/api_timeline_atom.tpl

@@ -61,7 +61,6 @@
 		<published>$status.published</published>
 		<updated>$status.updated</updated>
 
-		<link rel="ostatus:conversation" href="$status.url"/>
 		<!--
 		<source>
 		<id>http://identi.ca/api/statuses/user_timeline/397830.atom</id>
@@ -119,7 +118,7 @@
 			</poco:urls>
 			<!-- <statusnet:profile_info local_id="123710" following="true" blocking="false"></statusnet:profile_info> -->
 		</activity:actor>
-		<link rel="ostatus:conversation" href="$status.conversation"/> 
+		<link rel="ostatus:conversation" href="$status.url"/> 
 
 	</entry>    
     {{ endfor }}