Remove isMaintainer() and isSuperMaintainer and instead use the user

classes is_maintainer() and is_super_maintainer.

include/comments.php

@@ -64,7 +64,7 @@ function view_app_comment($ob)
     echo "</td></tr>\n";
 
     // delete message button, for admins
-    if(havepriv("admin") || isMaintainer($ob->appId, $ob->versionId))
+    if(havepriv("admin") || $_SESSION['current']->is_maintainer($ob->appId, $ob->versionId))
     {
         echo "<tr>";
         echo "<td><form method=\"post\" name=\"message\" action=\"".$apidb_root."deletecomment.php\"><input type=submit value='Delete' class=button>\n";