Removed dummy placeholder function stub

Templates/BaseGame/game/data/UI/UI.tscript

@@ -99,9 +99,4 @@ function UI::onDestroyClientConnection(%this)
 function UI::registerGameMenus(%this, %menusArrayObj)
 {
    %menusArrayObj.add("System", SystemMenu);
-}
-
-function listLevelsAndGameModes()
-{
-   
 }