remove synchronous usages of _purge_orphans()

classes/RPC.php

@@ -82,8 +82,6 @@ class RPC extends Handler_Protected {
 			WHERE ref_id IN ($ids_qmarks) AND owner_uid = ?");
 		$sth->execute([...$ids, $_SESSION['uid']]);
 
-		Article::_purge_orphans();
-
 		print json_encode(array("message" => "UPDATE_COUNTERS"));
 	}
 
@@ -311,10 +309,6 @@ class RPC extends Handler_Protected {
 			}
 		}
 
-		// Purge orphans and cleanup tags
-		Article::_purge_orphans();
-		//cleanup_tags(14, 50000);
-
 		if ($num_updated > 0) {
 			print json_encode(array("message" => "UPDATE_COUNTERS",
 				"num_updated" => $num_updated));

classes/RSSUtils.php

@@ -1721,7 +1721,9 @@ class RSSUtils {
 
 		PluginHost::getInstance()->add_scheduled_task('purge_orphans', '@daily',
 			function() {
-				Article::_purge_orphans(); return 0;
+				Article::_purge_orphans();
+
+				return 0;
 			}
 		);