staging: iio: tsl2x7x: remove unused variables from tsl2x7x_get_lux()

tsl2x7x_get_lux() has a ch0lux and ch1lux variables that are not used
so this patch removes them.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/light/tsl2x7x.c

@@ -344,8 +344,6 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 	struct tsl2x7x_lux *p;
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 	int i, ret;
-	u32 ch0lux = 0;
-	u32 ch1lux = 0;
 
 	mutex_lock(&chip->als_mutex);
 
@@ -416,15 +414,6 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 				   tsl2x7x_als_gain[chip->settings.als_gain]);
 	}
 
-	/* note: lux is 31 bit max at this point */
-	if (ch1lux > ch0lux) {
-		dev_dbg(&chip->client->dev,
-			"%s: ch1lux > ch0lux; returning last value\n",
-			__func__);
-		ret = chip->als_cur_info.lux;
-		goto out_unlock;
-	}
-
 	/* adjust for active time scale */
 	if (chip->als_time_scale == 0)
 		lux = 0;