watchdog: pcwd: drop always-false if from remove callback

If pcwd_isa_probe() succeeded pcwd_private.io_addr cannot be NULL. (And
if pcwd_isa_probe() failed, pcwd_isa_remove() isn't called.)
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210122092449.426097-2-uwe@kleine-koenig.orgSigned-off-by: Takashi Iwai <tiwai@suse.de>

drivers/watchdog/pcwd.c

@@ -956,9 +956,6 @@ static int pcwd_isa_remove(struct device *dev, unsigned int id)
 	if (debug >= DEBUG)
 		pr_debug("pcwd_isa_remove id=%d\n", id);
 
-	if (!pcwd_private.io_addr)
-		return 1;
-
 	/*  Disable the board  */
 	if (!nowayout)
 		pcwd_stop();