Fix a mismerge, automatic setup has not been removed (yet!)

Thanks @jdufresne for noticing.

Author: matthiask

docs/changes.rst

@@ -4,14 +4,6 @@ Change log
 1.6 (upcoming)
 --------------
 
-Removed features
-~~~~~~~~~~~~~~~~
-
-* Support for automatic setup has been removed. Installation now requires
-  explicit setup. As a result, the ``DEBUG_TOOLBAR_PATCH_SETTINGS`` setting has
-  also been removed. See the :doc:`installation documentation <installation>`
-  for details.
-
 Bugfixes
 ~~~~~~~~