[PATCH] rtc: sh: remove unused variable rtc_dev

[Anders Roxell]

When building rtc-sh, rtc_dev isn't used in function __sh_rtc_periodic.
drivers/rtc/rtc-sh.c: In function ‘__sh_rtc_periodic’:
drivers/rtc/rtc-sh.c:146:21: warning: unused variable ‘rtc_dev’ 
[-Wunused-variable]
  struct rtc_device *rtc_dev = rtc->rtc_dev;
                     ^~~~~~~
Remove the declaration of rtc_dev to dispose the warning.

Fixes: ec623ff014c4 ("rtc: sh: remove dead code")
Signed-off-by: Anders Roxell <anders.rox...@linaro.org>
---
 drivers/rtc/rtc-sh.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 25ec6a937858..51ba414798a8 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -143,7 +143,6 @@ static int __sh_rtc_alarm(struct sh_rtc *rtc)
 
 static int __sh_rtc_periodic(struct sh_rtc *rtc)
 {
-       struct rtc_device *rtc_dev = rtc->rtc_dev;
        unsigned int tmp, pending;
 
        tmp = readb(rtc->regbase + RCR2);
-- 
2.18.0