Revert "Add version validation for LookupMap, also add unittest directly in LookupMap."

pkg/lookup_map/test/version_check_test.dart

Index: pkg/lookup_map/test/version_check_test.dart
diff --git a/pkg/lookup_map/test/version_check_test.dart b/pkg/lookup_map/test/version_check_test.dart
deleted file mode 100644
index 2da0873163d8f5e107dcf245326c45188d987e98..0000000000000000000000000000000000000000
--- a/pkg/lookup_map/test/version_check_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:io';
-import 'dart:mirrors';
-import 'package:lookup_map/lookup_map.dart'; // accessed via mirrors;
-import 'package:test/test.dart';
-import 'package:yaml/yaml.dart';
-
-/// This dartdoc helps remove a warning for the unused import on [LookupMap].
-main() {
-  test('validate version number matches', () {
-    var pubspecPath = Platform.script.resolve('../pubspec.yaml').path;
-    var yaml = loadYaml(new File(pubspecPath).readAsStringSync());
-    var version1 = yaml['version'];
-    var library = currentMirrorSystem().findLibrary(#lookup_map);
-    var version2 = library.getField(new Symbol('_version')).reflectee;
-    expect(version1, version2);
-  });
-}