watchdog: shwdt: Trim down private data structure.

Now that we're using the generic watchdog core, kill off unused
elements from the private data structure.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers/watchdog/shwdt.c

@@ -77,9 +77,6 @@ struct sh_wdt {
 	spinlock_t		lock;
 
 	struct timer_list	timer;
-
-	unsigned long		enabled;
-	char			expect_close;
 };
 
 static int sh_wdt_start(struct watchdog_device *wdt_dev)