media: ov5640: Remove unneeded gpiod NULL check

The gpiod API checks for NULL descriptors, so there is no need to
duplicate the check in the driver.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/i2c/ov5640.c

@@ -1524,8 +1524,7 @@ static int ov5640_restore_mode(struct ov5640_dev *sensor)
 
 static void ov5640_power(struct ov5640_dev *sensor, bool enable)
 {
-	if (sensor->pwdn_gpio)
-		gpiod_set_value(sensor->pwdn_gpio, enable ? 0 : 1);
+	gpiod_set_value(sensor->pwdn_gpio, enable ? 0 : 1);
 }
 
 static void ov5640_reset(struct ov5640_dev *sensor)