[WATCHDOG] Remove the redundant check for pwrite() in EP93XXX watchdog.

Remove the redundant check for pwrite(), given that the open() routine
already invokes nonseekable_open().
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/char/watchdog/ep93xx_wdt.c

@@ -107,10 +107,6 @@ static ssize_t
 ep93xx_wdt_write(struct file *file, const char __user *data, size_t len,
 		 loff_t *ppos)
 {
-	/* Can't seek (pwrite) on this device */
-	if (*ppos != file->f_pos)
-		return -ESPIPE;
-
 	if (len) {
 		if (!nowayout) {
 			size_t i;