Removed functionality
^^^^^^^^^^^^^^^^^^^^^

.. Note to developers!
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   otherwise the formatting on the webpage is messed up.
   Also, please use the syntax :issue:`number` to reference issues on GitLab, without the
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Removed GMX_SCSIGMA_MIN environment variable
""""""""""""""""""""""""""""""""""""""""""""

This was used to reproduce free-energy soft-core behavior of GROMACS versions before 4.5.
