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

third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java

Index: third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
diff --git a/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java b/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
deleted file mode 100644
index 2cf210d26f58548e03805eef04114c5c337e85d6..0000000000000000000000000000000000000000
--- a/third_party/protobuf/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Protocol Buffers - Google's data interchange format
- * Copyright 2014 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.
- */
-
-package com.google.protobuf.jruby;
-
-import org.jruby.Ruby;
-import org.jruby.RubyModule;
-import org.jruby.anno.JRubyMethod;
-import org.jruby.anno.JRubyModule;
-import org.jruby.runtime.ThreadContext;
-import org.jruby.runtime.builtin.IRubyObject;
-
-@JRubyModule(name = "Protobuf")
-public class RubyProtobuf {
-
-    public static void createProtobuf(Ruby runtime) {
-        RubyModule mGoogle = runtime.getModule("Google");
-        RubyModule mProtobuf = mGoogle.defineModuleUnder("Protobuf");
-        mProtobuf.defineAnnotatedMethods(RubyProtobuf.class);
-    }
-
-    /*
-     * call-seq:
-     *     Google::Protobuf.deep_copy(obj) => copy_of_obj
-     *
-     * Performs a deep copy of either a RepeatedField instance or a message object,
-     * recursively copying its members.
-     */
-    @JRubyMethod(name = "deep_copy", meta = true)
-    public static IRubyObject deepCopy(ThreadContext context, IRubyObject self, IRubyObject message) {
-        if (message instanceof RubyMessage) {
-            return ((RubyMessage) message).deepCopy(context);
-        } else if (message instanceof RubyRepeatedField) {
-            return ((RubyRepeatedField) message).deepCopy(context);
-        } else {
-            return ((RubyMap) message).deepCopy(context);
-        }
-    }
-}