rtc-ds1390: fix compilation warnings in drivers/rtc/rtc-ds1390.c

drivers/rtc/rtc-ds1390.c:125: warning: unused variable 'rtc'

Signed-off-by: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-ds1390.c

@@ -122,7 +122,6 @@ static const struct rtc_class_ops ds1390_rtc_ops = {
 
 static int __devinit ds1390_probe(struct spi_device *spi)
 {
-	struct rtc_device *rtc;
 	unsigned char tmp;
 	struct ds1390 *chip;
 	int res;