Fixes #6780 - Remove elasticsearch port on uninstall

Sorry, the example was thinking about what would happen if we called this disable snippet when the port had already been changed using the commands you say.  If a user customised it to 11200-11300, then the disable script ran (using my example command, s/100-200/9200-9300/) then I think it would fail and produce an error during uninstall still.

I don't mean that it should be in elasticsearch policy (we know that), but I mean that it should be in foreman.te ideally, rather than being implemented in enable/disable scripts.