Bluetooth: bt3c-cs: Remove empty destruct cb

The callback is optional and we provide an empty callback so remove it.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index 0c97e5d..e74334d 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -456,11 +456,6 @@
 }
 
 
-static void bt3c_hci_destruct(struct hci_dev *hdev)
-{
-}
-
-
 static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
 {
 	return -ENOIOCTLCMD;
@@ -587,7 +582,6 @@
 	hdev->close    = bt3c_hci_close;
 	hdev->flush    = bt3c_hci_flush;
 	hdev->send     = bt3c_hci_send_frame;
-	hdev->destruct = bt3c_hci_destruct;
 	hdev->ioctl    = bt3c_hci_ioctl;
 
 	hdev->owner = THIS_MODULE;