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

sdk/lib/_internal/pub_generated/test/global/activate/activate_git_after_hosted_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 '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
   initConfig();
   integration('activating a Git package deactivates the hosted one', () {
     ensureGit();
 
     servePackages((builder) {
-      builder.serve("foo", "1.0.0", contents: [
-        d.dir("bin", [
-          d.file("foo.dart", "main(args) => print('hosted');")
-        ])
-      ]);
+      builder.serve(
+          "foo",
+          "1.0.0",
+          contents: [
+              d.dir("bin", [d.file("foo.dart", "main(args) => print('hosted');")])]);
     });
 
-    d.git('foo.git', [
-      d.libPubspec("foo", "1.0.0"),
-      d.dir("bin", [
-        d.file("foo.dart", "main() => print('git');")
-      ])
-    ]).create();
+    d.git(
+        'foo.git',
+        [
+            d.libPubspec("foo", "1.0.0"),
+            d.dir("bin", [d.file("foo.dart", "main() => print('git');")])]).create();
 
     schedulePub(args: ["global", "activate", "foo"]);
 
-    schedulePub(args: ["global", "activate", "-sgit", "../foo.git"],
+    schedulePub(
+        args: ["global", "activate", "-sgit", "../foo.git"],
         output: allOf(
             startsWith(
                 'Package foo is currently active at version 1.0.0.\n'
-                'Resolving dependencies...\n'
-                '+ foo 1.0.0 from git ../foo.git at '),
+                    'Resolving dependencies...\n' '+ foo 1.0.0 from git ../foo.git at '),
             // Specific revision number goes here.
-            endsWith(
-                'Precompiling executables...\n'
-                'Loading source assets...\n'
-                'Precompiled foo:foo.\n'
-                'Activated foo 1.0.0 from Git repository "../foo.git".')));
+    endsWith(
+        'Precompiling executables...\n' 'Loading source assets...\n'
+            'Precompiled foo:foo.\n'
+            'Activated foo 1.0.0 from Git repository "../foo.git".')));
 
     // Should now run the git one.
     var pub = pubRun(global: true, args: ["foo"]);
     pub.stdout.expect("git");
     pub.shouldExit();
   });
 }