Bluetooth: Remove some pointless conditionals before kfree_skb()

Remove some pointless conditionals before kfree_skb().

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index db6fbf1..ca4d3b4 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -518,8 +518,7 @@
 
 	BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
 
-	if (conn->rx_skb)
-		kfree_skb(conn->rx_skb);
+	kfree_skb(conn->rx_skb);
 
 	/* Kill channels */
 	while ((sk = conn->chan_list.head)) {