Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/global/activate/missing_git_repo_test.dart

Index: sdk/lib/_internal/pub/test/global/activate/missing_git_repo_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/activate/missing_git_repo_test.dart b/sdk/lib/_internal/pub/test/global/activate/missing_git_repo_test.dart
deleted file mode 100644
index 6b840b8fb0b7d8bff2a699f2d1ae1d44422de924..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/global/activate/missing_git_repo_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, 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 'package:scheduled_test/scheduled_test.dart';
-
-import '../../test_pub.dart';
-
-main() {
-  initConfig();
-  integration('fails if the Git repo does not exist', () {
-    ensureGit();
-
-    schedulePub(args: ["global", "activate", "-sgit", "../nope.git"],
-        error: contains("repository '../nope.git' does not exist"),
-        exitCode: 1);
-  });
-}