net: 802: remove dead leftover after ipx driver removal

Commit 7a2e838d ("staging: ipx: delete it from the tree") removes the
ipx driver and the config IPX. Since then, there is some dead leftover in
./net/802/, that was once used by the IPX driver, but has no other user.

Remove this dead leftover.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/802/Makefile

@@ -8,7 +8,6 @@ obj-$(CONFIG_LLC)	+= p8022.o psnap.o
 obj-$(CONFIG_NET_FC)	+=                 fc.o
 obj-$(CONFIG_FDDI)	+=                 fddi.o
 obj-$(CONFIG_HIPPI)	+=                 hippi.o
-obj-$(CONFIG_IPX)	+= p8022.o psnap.o p8023.o
 obj-$(CONFIG_ATALK)	+= p8022.o psnap.o
 obj-$(CONFIG_STP)	+= stp.o
 obj-$(CONFIG_GARP)	+= garp.o

net/802/p8023.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *	NET3:	802.3 data link hooks used for IPX 802.3
- *
- *	802.3 isn't really a protocol data link layer. Some old IPX stuff
- *	uses it however. Note that there is only one 802.3 protocol layer
- *	in the system. We don't currently support different protocols
- *	running raw 802.3 on different devices. Thankfully nobody else
- *	has done anything like the old IPX.
- */
-
-#include <linux/in.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-
-#include <net/datalink.h>
-#include <net/p8022.h>
-
-/*
- *	Place an 802.3 header on a packet. The driver will do the mac
- *	addresses, we just need to give it the buffer length.
- */
-static int p8023_request(struct datalink_proto *dl,
-			 struct sk_buff *skb, unsigned char *dest_node)
-{
-	struct net_device *dev = skb->dev;
-
-	dev_hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len);
-	return dev_queue_xmit(skb);
-}
-
-/*
- *	Create an 802.3 client. Note there can be only one 802.3 client
- */
-struct datalink_proto *make_8023_client(void)
-{
-	struct datalink_proto *proto = kmalloc(sizeof(*proto), GFP_ATOMIC);
-
-	if (proto) {
-		proto->header_length = 0;
-		proto->request	     = p8023_request;
-	}
-	return proto;
-}
-
-/*
- *	Destroy the 802.3 client.
- */
-void destroy_8023_client(struct datalink_proto *dl)
-{
-	kfree(dl);
-}
-
-EXPORT_SYMBOL(destroy_8023_client);
-EXPORT_SYMBOL(make_8023_client);
-
-MODULE_LICENSE("GPL");