fix: PS3 & Windows64 ContentPackage, Exclude PSVita libs & OldSDK from other plats

Minecraft.Client/Common/Leaderboards/LeaderboardManager.cpp

@@ -9,7 +9,7 @@ const wstring LeaderboardManager::filterNames[eNumFilterModes] =
 		L"Friends", L"MyScore", L"TopRank"
 	};
 
-#ifdef __PS3__ // str1k3r - only PS3 needs this, also this wasnt in the leak?
+#if defined(__PS3__) && !defined(_CONTENT_PACKAGE) // str1k3r - only PS3 needs this, also this wasnt in the leak?
 LeaderboardManager *LeaderboardManager::m_instance = NULL;
 #endif