Merge the openglui samples into one.

samples/simplegl/web/raytrace_driver.dart

Index: samples/simplegl/web/raytrace_driver.dart
diff --git a/samples/simplegl/web/raytrace_driver.dart b/samples/simplegl/web/raytrace_driver.dart
deleted file mode 100644
index 9c1352369cd916980f77e425318cd3e9b20a75c4..0000000000000000000000000000000000000000
--- a/samples/simplegl/web/raytrace_driver.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'gl_driver.dart';
-import 'raytrace.dart';
-
-main() {
-  wrapVertexArray = true;
-  glMain(setup, resize, update);
-}