removed unused import from tutorial 3 documentation as per ticket #18915

docs/intro/tutorial03.txt

@@ -513,11 +513,12 @@ Here's what happens if a user goes to "/polls/34/" in this system:
   further processing.
 
 Now that we've decoupled that, we need to decouple the ``polls.urls``
-URLconf by removing the leading "polls/" from each line, and removing the
-lines registering the admin site. Your ``polls/urls.py`` file should now look like
+URLconf by removing the leading "polls/" from each line, removing the
+lines registering the admin site, and removing the ``include`` import which
+is no longer used. Your ``polls/urls.py`` file should now look like
 this::
 
-    from django.conf.urls import patterns, include, url
+    from django.conf.urls import patterns, url
 
     urlpatterns = patterns('polls.views',
         url(r'^$', 'index'),