Revert revisions 5041 and 5042 introducing virtual scavenge...

src/objects.cc

Index: src/objects.cc
===================================================================
--- src/objects.cc	(revision 5045)
+++ src/objects.cc	(working copy)
@@ -2190,8 +2190,6 @@
     int new_instance_size = map()->instance_size() - instance_size_delta;
     new_map->set_inobject_properties(0);
     new_map->set_instance_size(new_instance_size);
-    new_map->set_scavenger(Heap::GetScavenger(new_map->instance_type(),
-                                              new_map->instance_size()));
     Heap::CreateFillerObjectAt(this->address() + new_instance_size,
                                instance_size_delta);
   }