remove retro remake dispay support and more ui cohesion

Source/hoc-clk/sysmodule/src/hos/integrations.cpp

@@ -88,11 +88,6 @@ namespace integrations {
         return stat("sdmc:/atmosphere/contents/0000000000534C56/flags/boot2.flag", &st) == 0;
     }
 
-    bool GetRETROSuperStatus() {
-        struct stat st = { 0 };
-        return stat("sdmc:/config/horizon-oc/retro.flag", &st) == 0;  // TODO: unhardcode this
-    }
-
     void LoadSaltyNX() {
         if (!CheckSaltyNXPort())
             return;