fix removeattic function

Author: splitbrain

action/removeattic.php

@@ -34,7 +34,9 @@ function remove(&$event, $param) {
             return; // previous version exist
         }
         global $ID;
-        $revisions = getRevisions($ID, 0, 0, 0);
+
+        $changelog = new PageChangelog($ID, 0);
+        $revisions = $changelog->getRevisions(0, 0);
 
         foreach ($revisions as $revision) {
             $fn = wikiFN($ID, $revision);