Removed notes about legacy Paginator object in the generic view docs (refs #7830).

``page_obj`` (**New in Django development version**)

    An instance of ``django.core.paginator.Page``.

In older versions of Django, before ``paginator`` and ``page_obj`` were added

to this template's context, the template included several other variables

related to pagination. Note that you should *NOT* use these variables anymore;

use ``paginator`` and ``page_obj`` instead, because they let you do everything

these old variables let you do (and more!). But for legacy installations,

here's a list of those old template variables:

    * ``results_per_page``: The number of objects per page. (Same as the

      ``paginate_by`` parameter.)

    * ``has_next``: A boolean representing whether there's a next page.

    * ``has_previous``: A boolean representing whether there's a previous page.

    * ``page``: The current page number, as an integer. This is 1-based.

    * ``next``: The next page number, as an integer. If there's no next page,

      this will still be an integer representing the theoretical next-page

      number. This is 1-based.

    * ``previous``: The previous page number, as an integer. This is 1-based.

    * ``last_on_page``: The number of the

      last result on the current page. This is 1-based.

    * ``first_on_page``: The number of the

      first result on the current page. This is 1-based.

    * ``pages``: The total number of pages, as an integer.

    * ``hits``: The total number of objects across *all* pages, not just this

      page.

    * ``page_range``: A list of the page numbers that are available. This is

      1-based.

See the `pagination documentation`_ for more information on the ``Paginator``

and ``Page`` objects.

Notes on pagination

~~~~~~~~~~~~~~~~~~~