Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_field_base.cc

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 106 matching lines @@
 }
 
 void FieldGeneratorBase::GenerateCodecCode(io::Printer* printer) {
     // No-op: expect this to be overridden by appropriate types.
     // Could fail if we get called here though...
 }
 
 void FieldGeneratorBase::AddDeprecatedFlag(io::Printer* printer) {
   if (descriptor_->options().deprecated())
   {
-    printer->Print("[global::System.ObsoleteAttribute]\n");
+    printer->Print("[global::System.ObsoleteAttribute()]\n");
   }
 }
 
 void FieldGeneratorBase::AddPublicMemberAttributes(io::Printer* printer) {
   AddDeprecatedFlag(printer);
-  WriteGeneratedCodeAttributes(printer);
 }
 
 std::string FieldGeneratorBase::oneof_property_name() {
   return UnderscoresToCamelCase(descriptor_->containing_oneof()->name(), true);
 }
 
 std::string FieldGeneratorBase::oneof_name() {
   return UnderscoresToCamelCase(descriptor_->containing_oneof()->name(), false);
 }
 
@@ skipping 277 matching lines @@
     default:
       GOOGLE_LOG(FATAL)<< "Unknown field type.";
       return "";
   }
 }
 
 }  // namespace csharp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google