Revert "Bluetooth: Move shutdown callback before flushing tx and rx q…

…ueue"

This reverts commit 4711284.

Botched backport, dropping to rework for next release.

Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/bluetooth/hci_core.c

@@ -1732,14 +1732,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
 	hci_request_cancel_all(hdev);
 	hci_req_sync_lock(hdev);
 
-	if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
-	    !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
-	    test_bit(HCI_UP, &hdev->flags)) {
-		/* Execute vendor specific shutdown routine */
-		if (hdev->shutdown)
-			hdev->shutdown(hdev);
-	}
-
 	if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
 		cancel_delayed_work_sync(&hdev->cmd_timer);
 		hci_req_sync_unlock(hdev);