Remove old code

It's never reached as it's impossible to build STK with stock Irrlicht

src/states_screens/main_menu_screen.cpp

@@ -170,11 +170,6 @@ void MainMenuScreen::init()
     r->setFocusForPlayer(PLAYER_ID_GAME_MASTER);
     DemoWorld::resetIdleTime();
 
-#if _IRR_MATERIAL_MAX_TEXTURES_ < 8
-    getWidget<IconButtonWidget>("logo")->setImage("gui/icons/logo_broken.png",
-        IconButtonWidget::ICON_PATH_TYPE_RELATIVE);
-#endif
-
 #ifdef IOS_STK
     // iOS app doesn't like quit button in UI
     Widget* quit = getWidget("quit");