[PATCH -next] rtc: drop unused ret variable orphaned by misc_deregister becoming void

[Paul Gortmaker <paul.gortmaker@windriver.com>]

In commit f368ed6088ae9c1fbe1c897bb5f215ce5e63fa1e ("char: make
misc_deregister a void function") this ret variable became unused
which now generates a compile warning.  Get rid of it.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: rtc-linux@googlegroups.com
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 drivers/rtc/rtc-ds1374.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 7067232ba507..742ac67eb702 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -663,9 +663,8 @@ static int ds1374_probe(struct i2c_client *client,
 static int ds1374_remove(struct i2c_client *client)
 {
 	struct ds1374 *ds1374 = i2c_get_clientdata(client);
-#ifdef CONFIG_RTC_DRV_DS1374_WDT
-	int res;
 
+#ifdef CONFIG_RTC_DRV_DS1374_WDT
 	misc_deregister(&ds1374_miscdev);
 	ds1374_miscdev.parent = NULL;
 	unregister_reboot_notifier(&ds1374_wdt_notifier);
-- 
2.5.0