Remove packaging from the standard library.

Distutils2 will live on on PyPI and be included in the stdlib when it
is ready.  See discussion starting at
http://mail.python.org/pipermail/python-dev/2012-June/120430.html
diff --git a/Doc/using/scripts.rst b/Doc/using/scripts.rst
index 88a9de6..2d28246 100644
--- a/Doc/using/scripts.rst
+++ b/Doc/using/scripts.rst
@@ -16,8 +16,7 @@
 in it with a ``home`` key pointing to the Python installation the
 command was run from.  It also creates a ``bin`` (or ``Scripts`` on
 Windows) subdirectory containing a copy of the ``python`` binary (or
-binaries, in the case of Windows) and the ``pysetup3`` script (to
-facilitate easy installation of packages from PyPI into the new virtualenv).
+binaries, in the case of Windows).
 It also creates an (initially empty) ``lib/pythonX.Y/site-packages``
 subdirectory (on Windows, this is ``Lib\site-packages``).