[DRE-maint] Bug#827834: deprecated: use ruby-state-machines instead

[Cédric Boutillier]

Package: ruby-state-machine
Followup-For: Bug #827834


This gem is indicated as obsolete, see:
https://github.com/pluginaweek/state_machine/issues/343

the only reverse dependency ruby-eye has been patched to use a
maintained fork, ruby-state-machines, already in the archive.

This bug is not worth fixing. Just remove the package when the new ruby-eye 0.7-4
migrates to testing.

Cheers,

Cédric