[1.8.x] Fixed #24839 -- Removed references to deprecated contrib.webdesign.

Backport of e11a08ee from master

docs/index.txt

@@ -152,7 +152,6 @@ designers and how it can be extended by programmers:
 * **For designers:**
   :doc:`Language overview <ref/templates/language>` |
   :doc:`Built-in tags and filters <ref/templates/builtins>` |
-  :doc:`Web design helpers <ref/contrib/webdesign>` |
   :doc:`Humanization <ref/contrib/humanize>`
 
 * **For programmers:**

docs/ref/templates/builtins.txt

@@ -2542,13 +2542,6 @@ django.contrib.humanize
 A set of Django template filters useful for adding a "human touch" to data. See
 :doc:`/ref/contrib/humanize`.
 
-
-django.contrib.webdesign
-^^^^^^^^^^^^^^^^^^^^^^^^
-
-A collection of template tags that can be useful while designing a Web site,
-such as a generator of Lorem Ipsum text. See :doc:`/ref/contrib/webdesign`.
-
 static
 ^^^^^^