Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/test/global/binstubs/explicit_and_no_executables_options_test.dart

 // 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 '../../../lib/src/exit_codes.dart' as exit_codes;
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
   initConfig();
   integration("errors if -x and --no-executables are both passed", () {
-    d.dir("foo", [
-      d.libPubspec("foo", "1.0.0")
-    ]).create();
+    d.dir("foo", [d.libPubspec("foo", "1.0.0")]).create();
 
-    schedulePub(args: [
-      "global", "activate", "--source", "path", "../foo",
-      "-x", "anything", "--no-executables"
-    ], error: contains("Cannot pass both --no-executables and --executable."),
+    schedulePub(
+        args: [
+            "global",
+            "activate",
+            "--source",
+            "path",
+            "../foo",
+            "-x",
+            "anything",
+            "--no-executables"],
+        error: contains("Cannot pass both --no-executables and --executable."),
         exitCode: exit_codes.USAGE);
   });
 }