rtc-r9701.c: silence compiler warning

Commit 75b61022 ("rtc: add support for
Epson RTC-9701JE V4") introduced the warning

  drivers/rtc/rtc-r9701.c: In function `r9701_get_datetime':
  drivers/rtc/rtc-r9701.c:74: warning: unused variable `time'
Signed-off-by: NS.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-r9701.c

@@ -71,7 +71,6 @@ static int read_regs(struct device *dev, unsigned char *regs, int no_regs)
 
 static int r9701_get_datetime(struct device *dev, struct rtc_time *dt)
 {
-	unsigned long time;
 	int ret;
 	unsigned char buf[] = { RSECCNT, RMINCNT, RHRCNT,
 				RDAYCNT, RMONCNT, RYRCNT };