fixed vita startup crash by guarding commerce calls

Minecraft.Client/Common/Network/Sony/PlatformNetworkManagerSony.cpp

@@ -56,7 +56,7 @@ void CPlatformNetworkManagerSony::HandleStateChange(SQRNetworkManager::eSQRNetwo
 		// 4J Stu - We may be accepting an invite from the DLC menu, so hide the icon
 #ifdef __ORBIS__
 		sceNpCommerceHidePsStoreIcon();
-#elif defined __PSVITA__
+#elif defined(__PSVITA__) && !defined(DISABLE_PSN)
 		app.GetCommerce()->HidePsStoreIcon();
 #endif
 		m_bLeavingGame = false;