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

third_party/protobuf/javanano/src/test/java/com/google/protobuf/nano/map_test.proto

Index: third_party/protobuf/javanano/src/test/java/com/google/protobuf/nano/map_test.proto
diff --git a/third_party/protobuf/javanano/src/test/java/com/google/protobuf/nano/map_test.proto b/third_party/protobuf/javanano/src/test/java/com/google/protobuf/nano/map_test.proto
deleted file mode 100644
index 51498a49257136224c03eda48c90579fa9091188..0000000000000000000000000000000000000000
--- a/third_party/protobuf/javanano/src/test/java/com/google/protobuf/nano/map_test.proto
+++ /dev/null
@@ -1,70 +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.
-
-syntax = "proto3";
-
-package map_test;
-
-option java_package = "com.google.protobuf";
-option java_outer_classname = "MapTestProto";
-
-message TestMap {
-  message MessageValue {
-    int32 value = 1;
-    int32 value2 = 2;
-  }
-  enum EnumValue {
-    FOO = 0;
-    BAR = 1;
-    BAZ = 2;
-    QUX = 3;
-  }
-
-  map<int32, int32>        int32_to_int32_field = 1;
-  map<int32, string>       int32_to_string_field = 2;
-  map<int32, bytes>        int32_to_bytes_field = 3;
-  map<int32, EnumValue>    int32_to_enum_field = 4;
-  map<int32, MessageValue> int32_to_message_field = 5;
-  map<string, int32>       string_to_int32_field = 6;
-  map<bool, bool>          bool_to_bool_field = 7;
-
-  // Test all the other primitive types. As the key and value are not coupled in
-  // the implementation, we do not test all the combinations of key/value pairs,
-  // so that we can keep the number of test cases manageable
-  map<uint32, uint32>      uint32_to_uint32_field = 11;
-  map<sint32, sint32>      sint32_to_sint32_field = 12;
-  map<fixed32, fixed32>    fixed32_to_fixed32_field = 13;
-  map<sfixed32, sfixed32>  sfixed32_to_sfixed32_field = 14;
-  map<int64, int64>        int64_to_int64_field = 15;
-  map<uint64, uint64>      uint64_to_uint64_field = 16;
-  map<sint64, sint64>      sint64_to_sint64_field = 17;
-  map<fixed64, fixed64>    fixed64_to_fixed64_field = 18;
-  map<sfixed64, sfixed64>  sfixed64_to_sfixed64_field = 19;
-}