Remove unused byte from Map::instance_sizes field.

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index 1dcc3d53948d13cd87f5770f06b04a0320f921ba..838a1a90755cc6e52a10bdf387c4aed58fee8527 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -412,9 +412,7 @@ void Map::MapPrint(std::ostream& os) {  // NOLINT
   os << " - type: " << TypeToString(instance_type()) << "\n";
   os << " - instance size: " << instance_size() << "\n";
   os << " - inobject properties: " << inobject_properties() << "\n";
-  os << " - elements kind: " << ElementsKindToString(elements_kind());
-  os << "\n - pre-allocated property fields: "
-     << pre_allocated_property_fields() << "\n";
+  os << " - elements kind: " << ElementsKindToString(elements_kind()) << "\n";
   os << " - unused property fields: " << unused_property_fields() << "\n";
   if (is_deprecated()) os << " - deprecated_map\n";
   if (is_stable()) os << " - stable_map\n";