Revert of [heap] Fine-grained JSArrayBuffer tracking

src/heap/objects-visiting-inl.h

Index: src/heap/objects-visiting-inl.h
diff --git a/src/heap/objects-visiting-inl.h b/src/heap/objects-visiting-inl.h
index 23166495606b7317e20b017960c4bd42393969bd..01dd3797753076ab400d504afcfb18c792356315 100644
--- a/src/heap/objects-visiting-inl.h
+++ b/src/heap/objects-visiting-inl.h
@@ -105,6 +105,11 @@
     Map* map, HeapObject* object) {
   typedef FlexibleBodyVisitor<StaticVisitor, JSArrayBuffer::BodyDescriptor, int>
       JSArrayBufferBodyVisitor;
+
+  if (!JSArrayBuffer::cast(object)->is_external()) {
+    Heap* heap = map->GetHeap();
+    heap->array_buffer_tracker()->MarkLive(JSArrayBuffer::cast(object));
+  }
   return JSArrayBufferBodyVisitor::Visit(map, object);
 }