Fixed #23132 -- Removed confusing clause in auth docs.

This document explains the usage of Django's authentication system in its

default configuration. This configuration has evolved to serve the most common

project needs, handling a reasonably wide range of tasks, and has a careful

implementation of passwords and permissions, and can handle many projects as

is.  For projects where authentication needs differ from the default, Django

supports extensive :doc:`extension and customization

</topics/auth/customizing>` of authentication.

implementation of passwords and permissions. For projects where authentication

needs differ from the default, Django supports extensive :doc:`extension and

customization </topics/auth/customizing>` of authentication.

Django authentication provides both authentication and authorization together

and is generally referred to as the authentication system, as these features