Deprecate choices from old voting flow

[julientinguely-da]

fixes #925

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[moritzkiefer-da]

Nice, I'd still consider if there is a point to keeping the logic for external amulet rules. Maybe best to keep it to not blow up this PR further but create a separate tech debt to consider cleaning this up.

[julientinguely-da]

Maybe best to keep it to not blow up this PR further but create a separate tech debt to consider cleaning this up.

#1624