Removed legacy links

Author: emanlove

README.rst

@@ -193,20 +193,15 @@ available:
 .. _Robot Framework: https://robotframework.org
 .. _Selenium: https://www.seleniumhq.org/
 .. _SeleniumLibrary: https://github.com/robotframework/SeleniumLibrary
-.. _Selenium2Library: https://github.com/robotframework/Selenium2Library
-.. _Old SeleniumLibrary: https://github.com/robotframework/OldSeleniumLibrary
 .. _pip: http://pip-installer.org
 .. _PyPI: https://pypi.python.org/pypi/robotframework-seleniumlibrary
 .. _GitHub: https://github.com/robotframework/SeleniumLibrary
 .. _Keyword Documentation: https://robotframework.org/SeleniumLibrary/SeleniumLibrary.html
 .. _Python: https://python.org
 .. _PyPy: https://pypy.org
-.. _Jython: https://jython.org/
-.. _IronPython: https://ironpython.net/
 .. _demo project: https://github.com/robotframework/WebDemo
 .. _Robot Framework User Guide: https://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html
 .. _Robot Framework installation instructions: https://github.com/robotframework/robotframework/blob/master/INSTALL.rst
-.. _robotframework-users: https://groups.google.com/group/robotframework-users
 .. _extending documentation: https://github.com/robotframework/SeleniumLibrary/blob/master/docs/extending/extending.rst
 .. _Slack community: https://robotframework-slack-invite.herokuapp.com
 .. _Robot Framework forum: https://forum.robotframework.org/