pop_possibility_state

# File lib/bundler/vendor/molinillo/lib/molinillo/state.rb, line 38
    def pop_possibility_state
      PossibilityState.new(
        name,
        requirements.dup,
        activated,
        requirement,
        [possibilities.pop],
        depth + 1,
        conflicts.dup,
        unused_unwind_options.dup
      ).tap do |state|
        state.activated.tag(state)
      end
    end