bgpd: improve cleanup in bgp_delete()

Signed-off-by: Lou Berger <lberger@labn.net>
diff --git a/bgpd/bgp_nexthop.h b/bgpd/bgp_nexthop.h
index c8aef58..85c5a5d 100644
--- a/bgpd/bgp_nexthop.h
+++ b/bgpd/bgp_nexthop.h
@@ -66,5 +66,7 @@
 extern int bgp_nexthop_onlink (afi_t, struct attr *);
 extern int bgp_nexthop_self (struct attr *);
 extern void bgp_address_init (void);
+extern void bgp_address_destroy (void);
+extern void bgp_scan_destroy (void);
 
 #endif /* _QUAGGA_BGP_NEXTHOP_H */