s3c-rtc: remove unused variable

Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-s3c.c

@@ -542,8 +542,6 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 
 /* RTC Power management control */
 
-static struct timespec s3c_rtc_delta;
-
 static int ticnt_save;
 
 static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)