Remove stale reference to iptest.py top-level script.

README.txt

@@ -1,29 +1,23 b''
 ==============
 IPython README
 ==============
 
 Overview
 ========
 
 Welcome to IPython. Our full documentation can be found in the ``docs/dist``
 subdirectory in ``.html`` and ``.pdf`` formats, also available online at our
 `website <http://ipython.scipy.org>`_.  The ``docs/source`` directory contains
 the plaintext version of these manuals.
 
 
-Instant running and testing
-===========================
+Instant running
+===============
 
 You can run IPython from this directory without even installing it system-wide
 by typing at the terminal:
 
 .. code-block:: bash
 
    python ipython.py
-
-and similarly, you can execute the built-in test suite with:
    
-.. code-block:: bash
-
-   python iptest.py
-   
  No newline at end of file