leds: lgm-sso: Drop duplicate NULL check for GPIO operations

Since GPIO operations are NULL-aware, we don't need to duplicate
this check. Remove it and fold the rest of the code.
Signed-off-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: NPavel Machek <pavel@ucw.cz>

drivers/leds/blink/leds-lgm-sso.c

@@ -258,7 +258,7 @@ static void sso_led_brightness_set(struct led_classdev *led_cdev,
 				   1 << desc->pin);
 	}
 
-	if (!desc->hw_trig && led->gpiod)
+	if (!desc->hw_trig)
 		gpiod_set_value(led->gpiod, val);
 }