Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/validator/utils.dart

Index: sdk/lib/_internal/pub/test/validator/utils.dart
diff --git a/sdk/lib/_internal/pub/test/validator/utils.dart b/sdk/lib/_internal/pub/test/validator/utils.dart
deleted file mode 100644
index 64a6b47d956e852302675676e05bcccc5154c703..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/validator/utils.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, 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.
-
-library validator.utils;
-
-import 'package:scheduled_test/scheduled_test.dart';
-
-import '../test_pub.dart';
-
-void expectNoValidationError(ValidatorCreator fn) {
-  expect(schedulePackageValidation(fn), completion(pairOf(isEmpty, isEmpty)));
-}
-
-void expectValidationError(ValidatorCreator fn) {
-  expect(schedulePackageValidation(fn),
-      completion(pairOf(isNot(isEmpty), anything)));
-}
-
-void expectValidationWarning(ValidatorCreator fn) {
-  expect(schedulePackageValidation(fn),
-      completion(pairOf(isEmpty, isNot(isEmpty))));
-}