Bluetooth: Remove debug statements

Now that these commands are sent to the controller we can use hcidump
to verify that the correct values are produced.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

net/bluetooth/smp.c

@@ -280,7 +280,7 @@ static void smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 	struct hci_conn *hcon = conn->hcon;
 	struct crypto_blkcipher *tfm = hcon->hdev->tfm;
 	int ret;
-	u8 key[16], res[16], random[16], confirm[16], buf[128];
+	u8 key[16], res[16], random[16], confirm[16];
 
 	swap128(skb->data, random);
 	skb_pull(skb, sizeof(random));
@@ -329,10 +329,6 @@ static void smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 
 		smp_s1(tfm, conn->tk, conn->prnd, random, key);
 		swap128(key, hcon->ltk);
-
-		hex_dump_to_buffer(key, sizeof(key), 16, 1, buf,
-							sizeof(buf), 0);
-		BT_DBG("key %s", buf);
 	}
 }