Remove elements transitions from the transition array.

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index cb5f2b79009d756eebdf14afaa17900acd4eb019..395f95ca7ea98a771ef0af15c282962e9327db53 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -1162,10 +1162,6 @@ static bool CheckOneBackPointer(Map* current_map, Object* target) {
 
 
 bool TransitionArray::IsConsistentWithBackPointers(Map* current_map) {
-  if (HasElementsTransition() &&
-      !CheckOneBackPointer(current_map, elements_transition())) {
-    return false;
-  }
   for (int i = 0; i < number_of_transitions(); ++i) {
     if (!CheckOneBackPointer(current_map, GetTarget(i))) return false;
   }