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.World/BasePressurePlateTile.cpp

@@ -43,7 +43,7 @@ int BasePressurePlateTile::getTickDelay(Level *level)
 
 AABB *BasePressurePlateTile::getAABB(Level *level, int x, int y, int z)
 {
-	return nullptr;
+	return NULL;
 }
 
 bool BasePressurePlateTile::isSolidRender(bool isServerLevel)