USB: iuu_phoenix: remove bogus disconnect test in close

Remove bogus (and unnecessary) test for serial->dev being NULL in close.

The device is never cleared, and close is never called after a completed
disconnect anyway.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/iuu_phoenix.c

@@ -951,14 +951,11 @@ static void iuu_close(struct usb_serial_port *port)
 		return;
 
 	iuu_uart_off(port);
-	if (serial->dev) {
-		/* free writebuf */
-		/* shutdown our urbs */
-		dev_dbg(&port->dev, "%s - shutting down urbs\n", __func__);
+
 	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
+
 	iuu_led(port, 0, 0, 0xF000, 0xFF);
-	}
 }
 
 static void iuu_init_termios(struct tty_struct *tty)