Remove DST_HOST

Previous changes to the IP routing code have removed all the
tests for the DS_HOST route flag.
Remove the flags and all the code that sets it.

Signed-off-by: David Laight <david.laight@aculab.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index dbda08e..d560d723 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2613,7 +2613,6 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
 		xdst->xfrm_genid = xfrm[i]->genid;
 
 		dst1->obsolete = DST_OBSOLETE_FORCE_CHK;
-		dst1->flags |= DST_HOST;
 		dst1->lastuse = now;
 
 		dst1->input = dst_discard;
@@ -2899,7 +2898,7 @@ static struct xfrm_dst *xfrm_create_dummy_bundle(struct net *net,
 	dst_copy_metrics(dst1, dst);
 
 	dst1->obsolete = DST_OBSOLETE_FORCE_CHK;
-	dst1->flags |= DST_HOST | DST_XFRM_QUEUE;
+	dst1->flags |= DST_XFRM_QUEUE;
 	dst1->lastuse = jiffies;
 
 	dst1->input = dst_discard;