W1: ds2490.c ds_write_block remove extra ds_wait_status

Drop the extra ds_wait_status() in ds_write_block().
Signed-off-by: David Fries <david@fries.net>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/w1/masters/ds2490.c

@@ -648,8 +648,6 @@ static int ds_write_block(struct ds_device *dev, u8 *buf, int len)
 	if (err < 0)
 		return err;
 
-	ds_wait_status(dev, &st);
-
 	err = ds_send_control(dev, COMM_BLOCK_IO | COMM_IM | COMM_SPU, len);
 	if (err)
 		return err;