Rationalize Dart mojo and sky package structure

sky/framework/components/radio.dart

Index: sky/framework/components/radio.dart
diff --git a/sky/framework/components/radio.dart b/sky/framework/components/radio.dart
deleted file mode 100644
index 548bfa7e12dcf2ba17fa7c3260f8804634354586..0000000000000000000000000000000000000000
--- a/sky/framework/components/radio.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import '../fn.dart';
-import 'button_base.dart';
-import 'ink_well.dart';
-
-typedef void ValueChanged(value);
-
-class Radio extends ButtonBase {
-  Object value;
-  Object groupValue;
-  ValueChanged onChanged;
-
-  static final Style _style = new Style('''
-    width: 14px;
-    height: 14px;
-    border-radius: 7px;
-    border: 1px solid blue;
-    margin: 0 5px;'''
-  );
-
-  static final Style _highlightStyle = new Style('''
-    width: 14px;
-    height: 14px;
-    border-radius: 7px;
-    border: 1px solid blue;
-    margin: 0 5px;
-    background-color: orange;'''
-  );
-
-  static final Style _dotStyle = new Style('''
-    width: 10px;
-    height: 10px;
-    border-radius: 5px;
-    background-color: black;
-    margin: 2px;'''
-  );
-
-  Radio({
-    Object key,
-    this.onChanged,
-    this.value,
-    this.groupValue
-  }) : super(key: key);
-
-  UINode buildContent() {
-    return new EventListenerNode(
-      new StyleNode(
-        new InkWell(
-          children: value == groupValue ? [new Container(style: _dotStyle)] : []
-        ),
-        highlight ? _highlightStyle : _style
-      ),
-      onGestureTap: _handleClick
-    );
-  }
-
-  void _handleClick(_) {
-    onChanged(value);
-  }
-}