Revert "Project modernization (#630)"

This code was not tested and breaks in Release builds, reverting to restore
functionality of the nightly. All in-game menus do not work and generating
a world crashes.

This reverts commit a9be52c41a.

Minecraft.Client/Xbox/4JLibs/inc/4J_Render.h

@@ -116,7 +116,7 @@ public:
 	void Initialise(IDirect3DDevice9 *pDevice);
 	void InitialiseContext();
 	void Present();
-	void Clear(int flags, D3DRECT *pRect = nullptr);
+	void Clear(int flags, D3DRECT *pRect = NULL);
 	void SetClearColour(D3DCOLOR colour);
 	bool IsWidescreen();
 	bool IsHiDef();