[BLUETOOTH] l2cap: don't mangle cmd.len

Since nobody uses it after we convert it to host-endian,
no need to do that at all.  At that point l2cap is endian-clean.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/bluetooth/l2cap.c

@@ -1754,7 +1754,6 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn, struct sk_buff *sk
 		len  -= L2CAP_CMD_HDR_SIZE;
 
 		cmd_len = le16_to_cpu(cmd.len);
-		cmd.len = cmd_len;
 
 		BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len, cmd.ident);