KRT: Remove useless option

sysdep/unix/krt.Y

@@ -78,7 +78,6 @@ kern_item:
 	cf_error("Learning of kernel routes not supported on this platform");
 #endif
    }
- | DEVICE ROUTES bool { THIS_KRT->devroutes = $3; }
  | GRACEFUL RESTART bool { THIS_KRT->graceful_restart = $3; }
  | MERGE PATHS bool kern_mp_limit {
       krt_set_merge_paths(this_channel, $3, $4);

sysdep/unix/krt.c

@@ -1159,7 +1159,7 @@ krt_reconfigure(struct proto *p, struct proto_config *CF)
     return 0;
 
   /* persist, graceful restart need not be the same */
-  return o->scan_time == n->scan_time && o->learn == n->learn && o->devroutes == n->devroutes;
+  return o->scan_time == n->scan_time && o->learn == n->learn;
 }
 
 struct proto_config *

sysdep/unix/krt.h

@@ -49,7 +49,6 @@ struct krt_config {
   btime scan_time;		/* How often we re-scan routes */
   int persist;			/* Keep routes when we exit */
   int learn;			/* Learn routes from other sources */
-  int devroutes;		/* XXX: remove */
   int graceful_restart;		/* Regard graceful restart recovery */
 };