[IPV6]: Remove struct pol_chain.

Struct pol_chain has existed since at least the 2.2 kernel, but isn't used
anymore. As the IPv6 policy routing is implemented in a totally different
way in the current kernel, just get rid of it.

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 6ca6b71..c14b70e 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -36,13 +36,6 @@
 #define RT6_LOOKUP_F_REACHABLE	0x2
 #define RT6_LOOKUP_F_HAS_SADDR	0x4
 
-struct pol_chain {
-	int			type;
-	int			priority;
-	struct fib6_node	*rules;
-	struct pol_chain	*next;
-};
-
 extern struct rt6_info	ip6_null_entry;
 
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES