Remove service-compiler related code.

samples/simple_todo/simple_todo_impl.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.md file.
-
-import 'todo_model.dart';
-import 'generated/dart/simple_todo.dart';
-
-class TodoImpl extends TodoService {
-  TodoModel _model = new TodoModel();
-
-  TodoImpl() {
-    _model.createItem("Default todo.");
-    _model.createItem("Another todo.");
-  }
-
-  void createItem(BoxString title) {
-    _model.createItem(title.s);
-  }
-
-  void toggle(int id) {
-    if (_model.todos.containsKey(id)) {
-      Item item = _model.todos[id];
-      if (item.done) {
-        item.uncomplete();
-      } else {
-        item.complete();
-      }
-    }
-  }
-
-  void clearItems() {
-    _model.clearItems();
-  }
-
-  void getItem(int index, TodoItemBuilder result) {
-    Iterable<Item> items = _model.todos.values;
-    if (index >= 0 && index < items.length) {
-      Item item = items.elementAt(index);
-      result.title = item.title;
-      result.done = item.done;
-      result.id = item.id;
-    }
-  }
-
-  void getItemById(int id, TodoItemBuilder result) {
-    if (_model.todos.containsKey(id)) {
-      Item item = _model.todos[id];
-      result.id = item.id;
-      result.title = item.title;
-      result.done = item.done;
-    }
-  }
-
-  int getNoItems() {
-    return _model.todos.values.length;
-  }
-
-  void deleteItem(int id) {
-    _model.todos.remove(id);
-  }
-}