Bluetooth: Remove unused dtl1_hci_ioctl() callback

The dtl1_hci_ioctl() function is not used and thus remove it.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

drivers/bluetooth/dtl1_cs.c

@@ -438,12 +438,6 @@ static int dtl1_hci_send_frame(struct sk_buff *skb)
 }
 
 
-static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd,  unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
-
 
 /* ======================== Card services HCI interaction ======================== */
 
@@ -481,7 +475,6 @@ static int dtl1_open(dtl1_info_t *info)
 	hdev->close = dtl1_hci_close;
 	hdev->flush = dtl1_hci_flush;
 	hdev->send  = dtl1_hci_send_frame;
-	hdev->ioctl    = dtl1_hci_ioctl;
 
 	spin_lock_irqsave(&(info->lock), flags);