This reverts commit 
ec49d83f245453515a9b6e88324e27bbcb69fbae.
Cause build failures when DCCP is modular.
ERROR: "inet_hashinfo2_init" [net/dccp/dccp.ko] undefined!
Signed-off-by: David S. Miller <davem@davemloft.net>
                goto out_fail;
        rc = -ENOBUFS;
        inet_hashinfo_init(&dccp_hashinfo);
-       inet_hashinfo2_init(&dccp_hashinfo, "dccp_listen_portaddr_hash",
-                           INET_LHTABLE_SIZE, 21,  /* one slot per 2 MB*/
-                           0, 64 * 1024);
        dccp_hashinfo.bind_bucket_cachep =
                kmem_cache_create("dccp_bind_bucket",
                                  sizeof(struct inet_bind_bucket), 0,