[DCCP]: Move dccp_v4_{init,destroy}_sock to the core

Removing one more ipv6 uses ipv4 stuff case in dccp land.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index ad5a1c6..84651bc 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -1146,7 +1146,7 @@
  */
 static int dccp_v6_init_sock(struct sock *sk)
 {
-	int err = dccp_v4_init_sock(sk);
+	int err = dccp_init_sock(sk);
 
 	if (err == 0)
 		inet_csk(sk)->icsk_af_ops = &dccp_ipv6_af_ops;
@@ -1156,7 +1156,7 @@
 
 static int dccp_v6_destroy_sock(struct sock *sk)
 {
-	dccp_v4_destroy_sock(sk);
+	dccp_destroy_sock(sk);
 	return inet6_destroy_sock(sk);
 }