Removed unnecessary code-block directives.

docs/topics/http/file-uploads.txt

@@ -260,9 +260,7 @@ list::
     :func:`~django.views.decorators.csrf.csrf_protect` on the function that
     actually processes the request.  Note that this means that the handlers may
     start receiving the file upload before the CSRF checks have been done.
-    Example code:
-
-    .. code-block:: python
+    Example code::
 
         from django.views.decorators.csrf import csrf_exempt, csrf_protect
 

docs/topics/http/views.txt

@@ -15,9 +15,7 @@ application directory.
 A simple view
 =============
 
-Here's a view that returns the current date and time, as an HTML document:
-
-.. code-block:: python
+Here's a view that returns the current date and time, as an HTML document::
 
     from django.http import HttpResponse
     import datetime