Remove implementation related to lazy fields.

PiperOrigin-RevId: 691936133

src/google/protobuf/compiler/cpp/extension.cc

@@ -229,9 +229,7 @@ void ExtensionGenerator::GenerateRegistration(io::Printer* p,
                           ? absl::StrCat("&", message_type, "::InternalVerify")
                           : "nullptr"},
            {"message_type", message_type},
-           {"lazy", descriptor_->options().has_lazy()
+           {"lazy", "kUndefined"}});
-                        ? descriptor_->options().lazy() ? "kLazy" : "kEager"
-                        : "kUndefined"}});
       if (using_implicit_weak_descriptors) {
         p->Emit(
             {

src/google/protobuf/extension_set_heavy.cc

@@ -286,10 +286,6 @@ bool DescriptorPoolExtensionFinder::Find(int number, ExtensionInfo* output) {
           << "Extension factory's GetPrototype() returned nullptr; extension: "
           << extension->full_name();
 
-      if (extension->options().has_lazy()) {
-        output->is_lazy = extension->options().lazy() ? LazyAnnotation::kLazy
-                                                      : LazyAnnotation::kEager;
-      }
     } else if (extension->cpp_type() == FieldDescriptor::CPPTYPE_ENUM) {
       output->enum_validity_check.func = ValidateEnumUsingDescriptor;
       output->enum_validity_check.arg = extension->enum_type();

src/google/protobuf/generated_message_reflection.cc

@@ -356,20 +356,12 @@ bool Reflection::IsLazyExtension(const Message& message,
 }
 
 bool Reflection::IsLazilyVerifiedLazyField(const FieldDescriptor* field) const {
-  if (field->type() != FieldDescriptor::TYPE_MESSAGE || field->is_repeated()) {
   return false;
-  }
-  return field->options().unverified_lazy();
 }
 
 bool Reflection::IsEagerlyVerifiedLazyField(
     const FieldDescriptor* field) const {
-  if (field->type() != FieldDescriptor::TYPE_MESSAGE) return false;
+  return false;
-
-  // Message fields with [lazy=true] will be eagerly verified
-  // (go/verified-lazy).
-  if (field->options().lazy() && !field->is_repeated()) return true;
-  return schema_.IsEagerlyVerifiedLazyField(field);
 }
 
 internal::field_layout::TransformValidation Reflection::GetLazyStyle(