Remove custom elements examples, they are no longer maintained

sky/examples/stocks/stocks.sky

Index: sky/examples/stocks/stocks.sky
diff --git a/sky/examples/stocks/stocks.sky b/sky/examples/stocks/stocks.sky
deleted file mode 100644
index 50d8fdd0c9e9498b9177c00c3505010c64653e9e..0000000000000000000000000000000000000000
--- a/sky/examples/stocks/stocks.sky
+++ /dev/null
@@ -1,112 +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 src="/sky/framework/elements/sky-drawer-header.sky" />
-<import src="/sky/framework/elements/sky-drawer.sky" />
-<import src="/sky/framework/elements/sky-element.sky" />
-<import src="/sky/framework/elements/sky-icon.sky" />
-<import src="/sky/framework/elements/sky-menu-divider.sky" />
-<import src="/sky/framework/elements/sky-menu-item.sky" />
-<import src="/sky/framework/elements/sky-scrollable.sky" />
-<import src="/sky/framework/elements/sky-toolbar.sky" />
-<import src="stock.sky" as='view'/>
-
-<sky-element>
-<template>
-  <style>
-    :host {
-      display: flex;
-      flex-direction: column;
-      height: -webkit-fill-available;
-      font-family: 'Roboto Regular', 'Helvetica';
-      font-size: 16px;
-    }
-    sky-drawer {
-      position: absolute;
-      z-index: 2;
-      top: 0;
-      left: 0;
-      bottom: 0;
-      right: 0;
-    }
-    sky-toolbar {
-      z-index: 1;
-      background-color: #3F51B5;
-      color: white;
-    }
-    sky-icon {
-      padding: 8px;
-      margin: 0 4px;
-    }
-    #title {
-      flex: 1;
-      margin: 0 4px;
-    }
-    sky-scrollable {
-      flex: 1;
-    }
-  </style>
-  <sky-drawer id="drawer" level="3">
-    <sky-drawer-header>
-      Stocks
-    </sky-drawer-header>
-    <sky-menu-item icon="content/inbox">Inbox</sky-menu-item>
-    <sky-menu-item icon="content/drafts">Drafts</sky-menu-item>
-    <sky-menu-divider />
-    <sky-menu-item icon="action/settings">Settings</sky-menu-item>
-    <sky-menu-item icon="action/help">Help &amp; feedback</sky-menu-item>
-  </sky-drawer>
-  <sky-toolbar level="2">
-    <sky-icon id="menu" type="navigation/menu_white" size="24" />
-    <div id="title">I am a stocks app</div>
-    <sky-icon type="action/search_white" size="24" />
-    <sky-icon type="navigation/more_vert_white" size="24" />
-  </sky-toolbar>
-  <sky-scrollable id='stock_list'>
-  </sky-scrollable>
-</template>
-<script>
-import "dart:sky";
-import "dart:math";
-import "../stocks-fn/lib/stock_data.dart" as model;
-
-List pick(List list, int count) {
-  var rng = new Random();
-  List picked = new List();
-  for (int i = 0; i < count; i++) {
-    picked.add(list[rng.nextInt(list.length)]);
-  }
-  return picked;
-}
-
-@Tagname('stocks')
-class Stocks extends SkyElement {
-  Element _drawer;
-
-  void shadowRootReady() {
-    _drawer = shadowRoot.getElementById('drawer');
-    Element menu = shadowRoot.getElementById('menu');
-    menu.addEventListener('click', _handleMenuClick);
-    populateStockList();
-  }
-
-  void populateStockList() {
-    Element stockList = shadowRoot.getElementById('stock_list');
-    // Limit to 100 to avoid taking seconds to load.
-    List<model.Stock> picked = pick(model.oracle.stocks, 100);
-    picked.sort((a, b) => a.symbol.compareTo(b.symbol));
-    for (model.Stock stock in picked) {
-      stockList.appendChild(new view.Stock()..model = stock);
-    }
-  }
-
-  void _handleMenuClick(_) {
-    _drawer.toggle();
-  }
-}
-
-_init(script) => register(script, Stocks);
-</script>
-</sky-element>