rtc: ds1347: remove useless read

DS1347_SECONDS_REG is read at probe time but the value is simply discarded.
Remove that useless read.

Link: https://lore.kernel.org/r/20191007134724.15505-3-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-ds1347.c

@@ -102,7 +102,6 @@ static int ds1347_probe(struct spi_device *spi)
 	struct regmap_config config;
 	struct regmap *map;
 	unsigned int data;
-	int res;
 
 	memset(&config, 0, sizeof(config));
 	config.reg_bits = 8;
@@ -125,11 +124,6 @@ static int ds1347_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, map);
 
-	/* RTC Settings */
-	res = regmap_read(map, DS1347_SECONDS_REG, &data);
-	if (res)
-		return res;
-
 	/* Disable the write protect of rtc */
 	regmap_read(map, DS1347_CONTROL_REG, &data);
 	data = data & ~(1<<7);