Revert of Prevent stack overflow in the serializer/deserializer.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index f49e34044ec130b2c98fc814e8c8bb7387544e11..71c67e6a74f48a194f33e6d87a36cafc8e63d07e 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -2831,7 +2831,6 @@
         if (value->IsPropertyCell()) {
           value = handle(PropertyCell::cast(*value)->value(), isolate());
         }
-        if (value->IsTheHole()) continue;
         PropertyDetails details = properties->DetailsAt(i);
         DCHECK_EQ(kData, details.kind());
         JSObject::AddProperty(to, key, value, details.attributes());