Comment (by Zach Etienne):

The parameters aren’t removed – rather they were moved as part of the EOS clean up. Originally they were duplicated between IllinoisGRMHD and ID_converter_ILGRMHD, so you had to set them twice. Now you only have to set them once.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2300/update-add-piecewise-polytrope-eos-support