removes answer <-> voter association

app/models/poll/answer.rb

@@ -3,8 +3,6 @@ class Poll::Answer < ActiveRecord::Base
   belongs_to :question, -> { with_hidden }
   belongs_to :author, ->   { with_hidden }, class_name: 'User', foreign_key: 'author_id'
 
-  has_one :voter
-
   delegate :poll, :poll_id, to: :question
 
   validates :question, presence: true
@@ -16,6 +14,6 @@ class Poll::Answer < ActiveRecord::Base
   scope :by_question, -> (question_id) { where(question_id: question_id) }
 
   def record_voter_participation
-    Poll::Voter.create_from_user(author, {poll_id: poll_id, answer_id: id})
+    Poll::Voter.create_from_user(author, {poll_id: poll_id})
   end
 end

app/models/poll/voter.rb

@@ -2,7 +2,6 @@ class Poll
   class Voter < ActiveRecord::Base
     belongs_to :poll
     belongs_to :booth_assignment
-    belongs_to :answer
 
     validates :poll, presence: true
     validates :document_number, presence: true, uniqueness: { scope: [:poll_id, :document_type], message: :has_voted }
@@ -26,7 +25,6 @@ class Poll
     def self.create_from_user(user, options = {})
       poll_id = options[:poll_id]
       booth_assignment_id = options[:booth_assignment_id]
-      answer_id = options[:answer_id]
 
       Voter.create(
         document_type: user.document_type,
@@ -35,8 +33,7 @@ class Poll
         booth_assignment_id: booth_assignment_id,
         gender: user.gender,
         geozone_id: user.geozone_id,
-        age: user.age,
-        answer_id: answer_id
+        age: user.age
       )
     end