Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb

Index: third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
diff --git a/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb b/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
deleted file mode 100644
index e10266ba2f3637d655c2de89c285558c987c613b..0000000000000000000000000000000000000000
--- a/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
+++ /dev/null
@@ -1,53 +0,0 @@
-# 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.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-module Google
-  module Protobuf
-    module MessageExts
-
-      #this is only called in jruby; mri loades the ClassMethods differently
-      def self.included(klass)
-        klass.extend(ClassMethods)
-      end
-
-      module ClassMethods
-      end
-
-      def to_json
-        self.class.encode_json(self)
-      end
-
-      def to_proto
-        self.class.encode(self)
-      end
-
-    end
-  end
-end