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

third_party/protobuf/java/src/test/java/com/google/protobuf/map_initialization_order_test.proto

Index: third_party/protobuf/java/src/test/java/com/google/protobuf/map_initialization_order_test.proto
diff --git a/third_party/protobuf/java/src/test/java/com/google/protobuf/map_initialization_order_test.proto b/third_party/protobuf/java/src/test/java/com/google/protobuf/map_initialization_order_test.proto
deleted file mode 100644
index b02ac599a5ed6387a46215393b4014d4bc70ea0d..0000000000000000000000000000000000000000
--- a/third_party/protobuf/java/src/test/java/com/google/protobuf/map_initialization_order_test.proto
+++ /dev/null
@@ -1,61 +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.
-
-// Regression test for a map initilaization order bug. The bug only manifests
-// when:
-//   1. A message contains map fields and is also extendable.
-//   2. There is a file-level extension defined in the same file referencing
-//      the above message as the extension type.
-//   3. The program executes in the following order:
-//        a. getDescriptor() is called on another message in the same file.
-//        b. use protobuf reflection to access the map field.
-// The symptom is a NullPointerException being thrown.
-syntax = "proto2";
-
-package map_test;
-
-option java_package = "map_test";
-option java_outer_classname = "MapInitializationOrderTest";
-option java_multiple_files = true;
-
-// Mirrors the structure of
-// javatests/com/google/cloud/common/logging/logging_test.proto.
-
-message Message1 {
-  map<string, bool> map_field = 1;
-  extensions 1000 to max;
-}
-
-extend Message1 {
-  optional Message1 recursive_extension = 1001;
-}
-
-message RedactAllTypes {
-}