[XFRM] netlink: Remove dependency on rtnetlink

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/xfrm/xfrm_user.c

@@ -19,7 +19,6 @@
 #include <linux/string.h>
 #include <linux/net.h>
 #include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
 #include <linux/pfkeyv2.h>
 #include <linux/ipsec.h>
 #include <linux/init.h>