Bluetooth: Remove 'register' usage from the subsystem

Let the compiler chooses what is best.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index da9f827..0d73577 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -799,7 +799,7 @@
 
 int hci_get_conn_list(void __user *arg)
 {
-	register struct hci_conn *c;
+	struct hci_conn *c;
 	struct hci_conn_list_req req, *cl;
 	struct hci_conn_info *ci;
 	struct hci_dev *hdev;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 89767ad..c1e0c3d 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -118,7 +118,7 @@
 			continue;
 
 		if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) {
-			register int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
+			int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
 
 			if (!hci_test_bit(evt, &flt->event_mask))
 				continue;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 824ae2f..6401cca 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -908,7 +908,7 @@
 /* ----- SCO interface with lower layer (HCI) ----- */
 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 {
-	register struct sock *sk;
+	struct sock *sk;
 	struct hlist_node *node;
 	int lm = 0;