gpio: remove all usage of gpio_remove retval in driver/gpio

Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c
index 3c3f515..66ad3df 100644
--- a/drivers/gpio/gpio-grgpio.c
+++ b/drivers/gpio/gpio-grgpio.c
@@ -468,9 +468,7 @@
 		}
 	}
 
-	ret = gpiochip_remove(&priv->bgc.gc);
-	if (ret)
-		goto out;
+	gpiochip_remove(&priv->bgc.gc);
 
 	if (priv->domain)
 		irq_domain_remove(priv->domain);