update ipv6 addresses from SSU rather than NTCP or NTCP2

libi2pd/NTCP2.cpp

@@ -1304,8 +1304,6 @@ namespace transport
 		else
 		{
 			LogPrint (eLogDebug, "NTCP2: Connected to ", conn->GetSocket ().remote_endpoint ());
-			if (conn->GetSocket ().local_endpoint ().protocol () == boost::asio::ip::tcp::v6()) // ipv6
-				context.UpdateNTCP2V6Address (conn->GetSocket ().local_endpoint ().address ());
 			conn->ClientLogin ();
 		}
 	}