Fixed Sphinx warnings when building docs introduced in r17665.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17675 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/ref/django-admin.txt

@@ -1198,7 +1198,6 @@ changed immediately. If you do not supply a user, the command will attempt to
 change the password whose username matches the current user.
 
 .. versionadded:: 1.4
-.. django-admin-option:: --database
 
 The ``--database`` option can be used to specify the database to query for the
 user. If it is not supplied the ``default`` database will be used.
@@ -1234,7 +1233,6 @@ line. If either of those is not supplied, ``createsuperuser`` will prompt for
 it when running interactively.
 
 .. versionadded:: 1.4
-.. django-admin-option:: --database
 
 The ``--database`` option can be used to specify the database into which the
 superuser object will be saved.