message: core: add_any_connection has no default anymore
diff: @@ -50,9 +50,6 @@ public:
  * - TCP - tcp://[Remote_host][:Remote_port]
  * - Serial - serial://Dev_Node[:Baudrate]
  *
  - * Default URL : udp://0.0.0.0:14540.
  - * - Default Bind host IP is any local interface (0.0.0.0)
  - *
  * @param connection_url connection URL string.
  * @return The result of adding the connection.
  */
  