Remove service-compiler related code.

samples/github/lib/src/commit_presenter.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 'github_services.dart';
-
-import 'package:immi/dart/immi.dart';
-import 'package:immi/dart/image.dart';
-
-import 'package:immi_samples/sequenced_presenter.dart';
-
-// Export generated code for nodes in commit_presenter.immi
-import 'package:immi/dart/commit_presenter.dart';
-export 'package:immi/dart/commit_presenter.dart';
-
-class CommitPresenter extends SequencedPresenter<CommitNode> {
-  Repository _repository;
-  Set<int> selectedIndices = new Set<int>();
-
-  CommitPresenter(this._repository);
-
-  void toggleAt(int index) {
-    if (selectedIndices.contains(index)) {
-      selectedIndices.remove(index);
-    } else {
-      selectedIndices.add(index);
-    }
-  }
-
-  CommitNode presentAt(int index) {
-    Map<String, dynamic> json = _repository.getCommitAt(index);
-    if (json == null) return null;
-
-    String imageUrl = json['author'] == null
-      ? ""
-      : json['author']['avatar_url'];
-
-    return new CommitNode(
-        author: json['commit']['author']['name'],
-        message: json['commit']['message'],
-        selected: selectedIndices.contains(index),
-        image: new ImageNode(url: imageUrl));
-  }
-}