pwm: samsung: Don't check the return code of pwmchip_remove()

pwmchip_remove() returns always 0. Don't use the value to make it
possible to eventually change the function to return void. Also the
driver core ignores the return value of pwm_samsung_remove()
and considers the device removed anyhow. So returning early results
in a resource leak.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-samsung.c

@@ -580,11 +580,8 @@ static int pwm_samsung_probe(struct platform_device *pdev)
 static int pwm_samsung_remove(struct platform_device *pdev)
 {
 	struct samsung_pwm_chip *chip = platform_get_drvdata(pdev);
-	int ret;
 
-	ret = pwmchip_remove(&chip->chip);
-	if (ret < 0)
-		return ret;
+	pwmchip_remove(&chip->chip);
 
 	clk_disable_unprepare(chip->base_clk);