Remove outdated documentation download links

README.rst

@@ -101,9 +101,7 @@ Documentation
 You can find the full documentation at
 `readthedocs <http://tespy.readthedocs.org>`_. Use the
 `project site <http://readthedocs.org/projects/tespy>`_ of readthedocs to
-choose the version of the documentation. Go to the
-`download page <http://readthedocs.org/projects/tespy/downloads/>`_ to
-download different versions and formats (pdf, html, epub) of the documentation.
+choose the version of the documentation.
 
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