Fixed #19605 - Removed unused url imports from doc examples.

Thanks sergzach for the suggestion.

docs/intro/overview.txt

@@ -176,7 +176,7 @@ decouple URLs from Python code.
 Here's what a URLconf might look like for the ``Reporter``/``Article``
 example above::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
 
     urlpatterns = patterns('',
         (r'^articles/(\d{4})/$', 'news.views.year_archive'),

docs/ref/contrib/admin/index.txt

@@ -1928,7 +1928,7 @@ In this example, we register the default ``AdminSite`` instance
 ``django.contrib.admin.site`` at the URL ``/admin/`` ::
 
     # urls.py
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns, include
     from django.contrib import admin
 
     admin.autodiscover()
@@ -1944,7 +1944,7 @@ In this example, we register the ``AdminSite`` instance
 ``myproject.admin.admin_site`` at the URL ``/myadmin/`` ::
 
     # urls.py
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns, include
     from myproject.admin import admin_site
 
     urlpatterns = patterns('',
@@ -1968,7 +1968,7 @@ separate versions of the admin site -- using the ``AdminSite`` instances
 respectively::
 
     # urls.py
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns, include
     from myproject.admin import basic_site, advanced_site
 
     urlpatterns = patterns('',

docs/ref/contrib/comments/example.txt

@@ -141,7 +141,7 @@ enable it in your project's ``urls.py``:
 
 .. code-block:: python
 
-  from django.conf.urls import patterns, url, include
+  from django.conf.urls import patterns
   from django.contrib.comments.feeds import LatestCommentFeed
 
   urlpatterns = patterns('',

docs/ref/contrib/sitemaps.txt

@@ -256,7 +256,7 @@ Example
 
 Here's an example of a :doc:`URLconf </topics/http/urls>` using both::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
     from django.contrib.sitemaps import FlatPageSitemap, GenericSitemap
     from blog.models import Entry
 

docs/ref/contrib/syndication.txt

@@ -77,7 +77,7 @@ latest five news items::
 To connect a URL to this feed, put an instance of the Feed object in
 your :doc:`URLconf </topics/http/urls>`. For example::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
     from myproject.feeds import LatestEntriesFeed
 
     urlpatterns = patterns('',
@@ -321,7 +321,7 @@ Here's a full example::
 
 And the accompanying URLconf::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
     from myproject.feeds import RssSiteNewsFeed, AtomSiteNewsFeed
 
     urlpatterns = patterns('',

docs/ref/models/instances.txt

@@ -601,7 +601,7 @@ pattern, it's possible to give a name to a pattern, and then reference the name
 rather than the view function. A named URL pattern is defined by replacing the
 pattern tuple by a call to the ``url`` function)::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import url
 
     url(r'^people/(\d+)/$', 'blog_views.generic_detail', name='people_view'),
 

docs/topics/class-based-views/generic-display.txt

@@ -110,7 +110,7 @@ Now we need to define a view::
 Finally hook that view into your urls::
 
     # urls.py
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns, url
     from books.views import PublisherList
 
     urlpatterns = patterns('',

docs/topics/class-based-views/index.txt

@@ -37,7 +37,7 @@ URLconf. If you're only changing a few simple attributes on a class-based view,
 you can simply pass them into the
 :meth:`~django.views.generic.base.View.as_view` method call itself::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
     from django.views.generic import TemplateView
 
     urlpatterns = patterns('',
@@ -73,7 +73,7 @@ point the URL to the :meth:`~django.views.generic.base.View.as_view` class
 method instead, which provides a function-like entry to class-based views::
 
     # urls.py
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
     from some_app.views import AboutView
 
     urlpatterns = patterns('',

docs/topics/http/urls.txt

@@ -66,7 +66,7 @@ Example
 
 Here's a sample URLconf::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
 
     urlpatterns = patterns('',
         (r'^articles/2003/$', 'news.views.special_case_2003'),
@@ -255,7 +255,7 @@ code duplication.
 
 Here's the example URLconf from the :doc:`Django overview </intro/overview>`::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
 
     urlpatterns = patterns('',
         (r'^articles/(\d{4})/$', 'news.views.year_archive'),
@@ -270,7 +270,7 @@ each view function.
 
 With this in mind, the above example can be written more concisely as::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
 
     urlpatterns = patterns('news.views',
         (r'^articles/(\d{4})/$', 'year_archive'),
@@ -291,7 +291,7 @@ Just add multiple ``patterns()`` objects together, like this:
 
 Old::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
 
     urlpatterns = patterns('',
         (r'^$', 'myapp.views.app_index'),
@@ -301,7 +301,7 @@ Old::
 
 New::
 
-    from django.conf.urls import patterns, url, include
+    from django.conf.urls import patterns
 
     urlpatterns = patterns('myapp.views',
         (r'^$', 'app_index'),