Clean up examples directory

sky/examples/flights-app/app-toast.sky

Index: sky/examples/flights-app/app-toast.sky
diff --git a/sky/examples/flights-app/app-toast.sky b/sky/examples/flights-app/app-toast.sky
deleted file mode 100644
index 36626ff202b762a3b277610737489c344e102d7d..0000000000000000000000000000000000000000
--- a/sky/examples/flights-app/app-toast.sky
+++ /dev/null
@@ -1,51 +0,0 @@
-<import src="../../framework/sky-element/sky-element.sky" as="SkyElement" />
-
-<sky-element name="app-toast">
-<template>
-  <style>
-    :host {
-      position: absolute;
-      bottom: 32px;
-      right: 32px;
-      max-width: 55%;
-      box-shadow: 0px 0px 12px 2px rgba(22, 22, 22, 0.4);
-      background-image: linear-gradient(#E5D658, #DFCF43);
-      border: 1px solid #AEA477;
-      padding: 6px;
-      border-radius: 2px;
-      display: flex;
-      align-items: center;
-      font-size: 0.8em;
-      overflow: hidden;
-    }
-
-    .header {
-      flex-shrink: 0;
-      margin-right: 6px;
-    }
-
-    .close-box {
-      position: absolute;
-      top: 3px;
-      right: 3px;
-      width: 1em;
-      overflow: hidden;
-      text-align: center;
-      outline: 1px solid #AEA477;
-    }
-  </style>
-  <div class="header">
-    <content select=".toast-icon" />
-  </div>
-  <div class="content">
-    <content select=".toast-content" />
-  </div>
-  <div class="close-box">
-   X
-  </div>
-</template>
-<script>
-module.exports = class extends SkyElement {
-}.register();
-</script>
-</sky-element>