Revert "Allow interface types to override glean adjacency behaivour"

This reverts commit 8b30e471df4d42214619e1d6c50cc8298426b45f.

Change-Id: I99edb236eb0a7f8ba3fba333c3481a710ebcb59c
Signed-off-by: Ole Troan <ot@cisco.com>
diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c
index da56c2b..149f0a5 100644
--- a/src/vnet/ethernet/arp.c
+++ b/src/vnet/ethernet/arp.c
@@ -455,10 +455,8 @@
 
   switch (adj->lookup_next_index)
     {
-    case IP_LOOKUP_NEXT_GLEAN:
-      adj_glean_update_rewrite (ai);
-      break;
     case IP_LOOKUP_NEXT_ARP:
+    case IP_LOOKUP_NEXT_GLEAN:
       if (NULL != e)
 	{
 	  adj_nbr_walk_nh4 (sw_if_index,
@@ -2489,8 +2487,6 @@
     change_arp_mac (sw_if_index, e);
   }));
   /* *INDENT-ON* */
-
-  adj_glean_update_rewrite (adj_glean_get (FIB_PROTOCOL_IP4, sw_if_index));
 }
 
 void