fix: windows build, uncap fps, double buffer, remove Sleep(0),

Minecraft.Client/Common/Leaderboards/LeaderboardManager.cpp

@@ -9,7 +9,9 @@ const wstring LeaderboardManager::filterNames[eNumFilterModes] =
 		L"Friends", L"MyScore", L"TopRank"
 	};
 
+#if !defined(_WINDOWS64) && !defined(_DURANGO) && !defined(__ORBIS__) && !defined(__PS3__) && !defined(__PSVITA__) && !defined(_XBOX)
 LeaderboardManager *LeaderboardManager::m_instance = NULL;
+#endif
 
 void LeaderboardManager::DeleteInstance()
 {