Bluetooth: Remove redundant setting to zero of bt_cb

The socket allocation functions will always memset skb->cb to zero so
there's no need to make other initializations needing the same thing.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 663e0ef..a85e6d3 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -325,10 +325,8 @@
 	struct sk_buff *skb;
 
 	skb = alloc_skb(len + BT_SKB_RESERVE, how);
-	if (skb) {
+	if (skb)
 		skb_reserve(skb, BT_SKB_RESERVE);
-		bt_cb(skb)->incoming  = 0;
-	}
 	return skb;
 }
 
@@ -338,10 +336,8 @@
 	struct sk_buff *skb;
 
 	skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
-	if (skb) {
+	if (skb)
 		skb_reserve(skb, BT_SKB_RESERVE);
-		bt_cb(skb)->incoming  = 0;
-	}
 
 	if (!skb && *err)
 		return NULL;