watchdog: ts72xx_wdt: Kill superfluous variable in remove

There is no need to store the return value of misc_deregister() in a
variable. Instead we can just return the value directly.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index afa9d6e..dee9c6c 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -428,11 +428,7 @@
 
 static int ts72xx_wdt_remove(struct platform_device *pdev)
 {
-	int error;
-
-	error = misc_deregister(&ts72xx_wdt_miscdev);
-
-	return error;
+	return misc_deregister(&ts72xx_wdt_miscdev);
 }
 
 static struct platform_driver ts72xx_wdt_driver = {