Update Stocks.apk build tech

sky/apk/stocks/org/domokit/stocks/StocksActivity.java

Index: sky/apk/stocks/org/domokit/stocks/StocksActivity.java
diff --git a/sky/apk/stocks/org/domokit/stocks/StocksActivity.java b/sky/apk/stocks/org/domokit/stocks/StocksActivity.java
deleted file mode 100644
index 9e60afe641533948d5969e3c90c9213421f70a4d..0000000000000000000000000000000000000000
--- a/sky/apk/stocks/org/domokit/stocks/StocksActivity.java
+++ /dev/null
@@ -1,23 +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.
-
-package org.domokit.stocks;
-
-import android.os.Bundle;
-
-import org.domokit.sky.shell.SkyActivity;
-
-/**
- * Main activity for Stocks.
- */
-public class StocksActivity extends SkyActivity {
-    /**
-     * @see android.app.Activity#onCreate(android.os.Bundle)
-     */
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        loadUrl("https://domokit.github.io/sky/sdk/example/stocks/index.sky");
-    }
-}