simplify integration

Source/CogSample/CogSampleGameState.h

@@ -25,19 +25,15 @@ private:
     UPROPERTY()
     TObjectPtr<UObject> CogWindowManagerRef = nullptr;
 
-#if USE_COG
+#if ENABLE_COG
 
     void InitializeCog();
 
-    void TickCog(float DeltaTime);
-
-    void RenderCog(float DeltaTime);
-
     void RegisterCommand(const TCHAR* Name, const TCHAR* Help, const FConsoleCommandWithArgsDelegate& Command);
 
     void CogToggleInput(const TArray<FString>& Args);
 
     TObjectPtr<UCogWindowManager> CogWindowManager = nullptr;
 
-#endif //USE_COG
+#endif //ENABLE_COG
 };