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/PotionItem.h

@@ -7,7 +7,7 @@ class MobEffectInstance;
 class PotionItem : public Item
 {
 private:
-	static const int DRINK_DURATION = static_cast<int>(20 * 1.6);
+	static const int DRINK_DURATION = (int) (20 * 1.6);
 
 public:
 	static const wstring DEFAULT_ICON;