net: 802: Remove unused function declarations

Commit d8d9ba8d ("net: 802: remove dead leftover after ipx driver removal")
remove these implementations but leave the declarations.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230803135424.41664-1-yuehaibing@huawei.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

include/net/p8022.h

@@ -13,7 +13,4 @@ register_8022_client(unsigned char type,
 				 struct packet_type *pt,
 				 struct net_device *orig_dev));
 void unregister_8022_client(struct datalink_proto *proto);
-
-struct datalink_proto *make_8023_client(void);
-void destroy_8023_client(struct datalink_proto *dl);
 #endif