Don't use .gitignore when determining what to build/serve/run.

sdk/lib/_internal/pub/test/serve/does_not_serve_gitignored_assets_in_a_path_dependency_test.dart

Index: sdk/lib/_internal/pub/test/serve/does_not_serve_gitignored_assets_in_a_path_dependency_test.dart
diff --git a/sdk/lib/_internal/pub/test/serve/does_not_serve_gitignored_assets_in_a_path_dependency_test.dart b/sdk/lib/_internal/pub/test/serve/does_not_serve_gitignored_assets_in_a_path_dependency_test.dart
deleted file mode 100644
index d92eb261bbf94e379556cea5b4c3a588232a91f1..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/serve/does_not_serve_gitignored_assets_in_a_path_dependency_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS d.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 pub_tests;
-
-import '../descriptor.dart' as d;
-import '../test_pub.dart';
-import 'utils.dart';
-
-main() {
-  initConfig();
-  integration("doesn't serve .gitignored assets in a path dependency", () {
-    ensureGit();
-
-    d.dir(appPath, [
-      d.appPubspec({"foo": {"path": "../foo"}}),
-    ]).create();
-
-    d.git("foo", [
-      d.libPubspec("foo", "1.0.0"),
-      d.dir("lib", [
-        d.file("outer.txt", "outer contents"),
-        d.file("visible.txt", "visible"),
-        d.dir("dir", [
-          d.file("inner.txt", "inner contents"),
-        ])
-      ]),
-      d.file(".gitignore", "/lib/outer.txt\n/lib/dir")
-    ]).create();
-
-    pubServe(shouldGetFirst: true);
-    requestShould404("packages/foo/outer.txt");
-    requestShould404("packages/foo/dir/inner.txt");
-    requestShouldSucceed("packages/foo/visible.txt", "visible");
-    endPubServe();
-  });
-}