Bluetooth: Remove unused hdev->init_last_cmd

This variable is no longer needed (due to async HCI request support and
the conversion of hci_req_sync to use it), so it can be safely removed.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

include/net/bluetooth/hci_core.h

@@ -248,8 +248,6 @@ struct hci_dev {
 	__u32			req_status;
 	__u32			req_result;
 
-	__u16			init_last_cmd;
-
 	struct list_head	mgmt_pending;
 
 	struct discovery_state	discovery;

net/bluetooth/hci_core.c

@@ -1015,10 +1015,7 @@ int hci_dev_open(__u16 dev)
 	if (!test_bit(HCI_RAW, &hdev->flags)) {
 		atomic_set(&hdev->cmd_cnt, 1);
 		set_bit(HCI_INIT, &hdev->flags);
-		hdev->init_last_cmd = 0;
-
 		ret = __hci_init(hdev);
-
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
 
@@ -2509,9 +2506,6 @@ int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param)
 		return -ENOMEM;
 	}
 
-	if (test_bit(HCI_INIT, &hdev->flags))
-		hdev->init_last_cmd = opcode;
-
 	/* Stand-alone HCI commands must be flaged as
 	 * single-command requests.
 	 */