Remove Ricochet from Whonix

[Patrick]

@Patrick

Removed since no longer working in Whonix 15 despite all efforts.

ricochet support

This has been figured out and fixed thanks to @JeremyRand! https://github.com/blueprint-freespeech/ricochet-refresh/pull/101 https://github.com/blueprint-freespeech/ricochet-refresh/pull/102 So once that is merged and there’s a new ricochet release, ricochet might be again functional inside Whonix. This also opens the door for considering to re-install ricochet by default inside Whonix if/when ricochet hits the next Debian stable.