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/Durango/Network/DQRNetworkManager.h

@@ -221,7 +221,7 @@ public:
 	class SessionSearchResult
 	{
 	public:
-		SessionSearchResult() { m_extData = nullptr; }
+		SessionSearchResult() { m_extData = NULL; }
 		~SessionSearchResult() { free(m_extData); }
 		wstring			m_partyId;
 		wstring			m_sessionName;