[NaCl SDK] Make the SDK examples buildable as a packaged app.

native_client_sdk/src/examples/hello_world_instance3d/example.dsc

Index: native_client_sdk/src/examples/hello_world_instance3d/example.dsc
diff --git a/native_client_sdk/src/examples/hello_world_instance3d/example.dsc b/native_client_sdk/src/examples/hello_world_instance3d/example.dsc
index 2ba6eb1be0bd8d69b6397288d1ec1c729e3ce17d..4180cada5e41340477f86a81135697fde67e0bb3 100644
--- a/native_client_sdk/src/examples/hello_world_instance3d/example.dsc
+++ b/native_client_sdk/src/examples/hello_world_instance3d/example.dsc
@@ -21,11 +21,6 @@
   'DEST': 'examples',
   'NAME': 'hello_world_instance3d',
   'TITLE': 'Hello World GLES 2.0 using ppapi_instance3d',
-  'DESC': """
-The Hello World GLES 2.0 example demonstrates how to create a 3D cube
-that rotates.  This is a simpler example than the tumbler example, and
-written in C.  It loads the assets using URLLoader.""",
-  'FOCUS': '3D graphics, URL Loader.',
   'GROUP': 'API'
 }