libata: drop ata_dev_select() from ata_dev_read_id

There is no reason to issue device select in read_id, it will be done
by ops->qc_issue() when IDENTIFY[_PACKET] is issued via
ata_exec_internal().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/libata-core.c

@@ -2156,7 +2156,6 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
 	if (ata_msg_ctl(ap))
 		ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __func__);
 
-	ata_dev_select(ap, dev->devno, 1, 1); /* select device 0/1 */
  retry:
 	ata_tf_init(dev, &tf);