Clean up examples directory

sky/examples/example-element/example-element.sky

Index: sky/examples/example-element/example-element.sky
diff --git a/sky/examples/example-element/example-element.sky b/sky/examples/example-element/example-element.sky
deleted file mode 100644
index 097d4f54e2ca5484550450987d49c350ce3122b4..0000000000000000000000000000000000000000
--- a/sky/examples/example-element/example-element.sky
+++ /dev/null
@@ -1,25 +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/sky-element.sky" />
-<sky-element>
-<template>
-  <style>
-    div {
-      height: 50px;
-      width: 50px;
-      background-color: green;
-    }
-  </style>
-  <div>Hi</div>
-</template>
-<script>
-@Tagname('example')
-class ExampleElement extends SkyElement {
-}
-
-_init(script) => register(script, ExampleElement);
-</script>
-</sky-element>