remove adaptive rAF polyfill

Author: kdroidFilter

sample/src/webMain/resources/adaptive-raf.js

@@ -209,8 +209,6 @@
 }());
 </script>
 
-<!-- Adaptive rAF: compensates Chrome Energy Saver throttling. Add ?fps=1 to URL for overlay. -->
-<script src="adaptive-raf.js"></script>
 <script type="application/javascript" src="sample.js"></script>
 </body>
 </html>