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

third_party/protobuf/python/google/protobuf/pyext/python.proto

Index: third_party/protobuf/python/google/protobuf/pyext/python.proto
diff --git a/third_party/protobuf/python/google/protobuf/pyext/python.proto b/third_party/protobuf/python/google/protobuf/pyext/python.proto
deleted file mode 100644
index cce645d71ad9d5e4acffb7ad8ebc8d2febc5f5f2..0000000000000000000000000000000000000000
--- a/third_party/protobuf/python/google/protobuf/pyext/python.proto
+++ /dev/null
@@ -1,68 +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.
-
-// Author: tibell@google.com (Johan Tibell)
-//
-// These message definitions are used to exercises known corner cases
-// in the C++ implementation of the Python API.
-
-syntax = "proto2";
-
-package google.protobuf.python.internal;
-
-// Protos optimized for SPEED use a strict superset of the generated code
-// of equivalent ones optimized for CODE_SIZE, so we should optimize all our
-// tests for speed unless explicitly testing code size optimization.
-option optimize_for = SPEED;
-
-message TestAllTypes {
-  message NestedMessage {
-    optional int32 bb = 1;
-    optional ForeignMessage cc = 2;
-  }
-
-  repeated NestedMessage repeated_nested_message = 1;
-  optional NestedMessage optional_nested_message = 2;
-  optional int32 optional_int32 = 3;
-}
-
-message ForeignMessage {
-  optional int32 c = 1;
-  repeated int32 d = 2;
-}
-
-message TestAllExtensions {
-  extensions 1 to max;
-}
-
-extend TestAllExtensions {
-  optional TestAllTypes.NestedMessage optional_nested_message_extension = 1;
-  repeated TestAllTypes.NestedMessage repeated_nested_message_extension = 2;
-}