Remove service-compiler related code.

pkg/immi_samples/lib/menu.dart

-// Copyright (c) 2015, the Dartino 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:immi/dart/immi.dart';
-
-// Export generated code for nodes in menu.immi
-import 'package:immi/dart/menu.dart';
-export 'package:immi/dart/menu.dart';
-
-class MenuItem {
-  String title;
-  Function select;
-
-  MenuItem(this.title, this.select);
-
-  MenuItemNode present(Node previous) {
-    return new MenuItemNode(title: title, select:select);
-  }
-}
-
-class Menu {
-  String title;
-  List<MenuItem> items = [];
-
-  Menu(this.title);
-
-  void add(MenuItem item) {
-    items.add(item);
-  }
-
-  MenuNode present(Node previous) {
-    return new MenuNode(
-        title: title,
-        items:items.map((item) => item.present(null)).toList());
-  }
-}