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

sdk/lib/_internal/pub_generated/lib/src/command/global_deactivate.dart

Index: sdk/lib/_internal/pub_generated/lib/src/command/global_deactivate.dart
diff --git a/sdk/lib/_internal/pub_generated/lib/src/command/global_deactivate.dart b/sdk/lib/_internal/pub_generated/lib/src/command/global_deactivate.dart
deleted file mode 100644
index 595f6ffd798bed2bab598dbb93d6622ff822e359..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub_generated/lib/src/command/global_deactivate.dart
+++ /dev/null
@@ -1,36 +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.
-
-library pub.command.global_deactivate;
-
-import 'dart:async';
-
-import '../command.dart';
-import '../log.dart' as log;
-import '../utils.dart';
-
-/// Handles the `global deactivate` pub command.
-class GlobalDeactivateCommand extends PubCommand {
-  String get name => "deactivate";
-  String get description => "Remove a previously activated package.";
-  String get invocation => "pub global deactivate <package>";
-
-  void run() {
-    // Make sure there is a package.
-    if (argResults.rest.isEmpty) {
-      usageException("No package to deactivate given.");
-    }
-
-    // Don't allow extra arguments.
-    if (argResults.rest.length > 1) {
-      var unexpected = argResults.rest.skip(1).map((arg) => '"$arg"');
-      var arguments = pluralize("argument", unexpected.length);
-      usageException("Unexpected $arguments ${toSentence(unexpected)}.");
-    }
-
-    if (!globals.deactivate(argResults.rest.first)) {
-      dataError("No active package ${log.bold(argResults.rest.first)}.");
-    }
-  }
-}