gpio: max730x: Remove redundant dev_set_drvdata

Driver core sets it to NULL upon probe failure or release.

Signed-off-by: Sachin Kamat <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/gpio-max730x.c

···
 	return ret;
 
 exit_destroy:
-	dev_set_drvdata(dev, NULL);
 	mutex_destroy(&ts->lock);
 	return ret;
 }
···
 
 	if (ts == NULL)
 		return -ENODEV;
-
-	dev_set_drvdata(dev, NULL);
 
 	/* Power down the chip and disable IRQ output */
 	ts->write(dev, 0x04, 0x00);