diff --git a/app/models/user.rb b/app/models/user.rb
index 04ca708a9..03f2db27b 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -244,10 +244,6 @@ class User < ActiveRecord::Base
   end
   delegate :can?, :cannot?, to: :ability
 
-  def age_range
-    AgeRangeCalculator::range_from_birthday(self.date_of_birth).to_s
-  end
-
   private
 
     def clean_document_number
diff --git a/spec/lib/graphql_spec.rb b/spec/lib/graphql_spec.rb
index 99597c690..b2a9ed477 100644
--- a/spec/lib/graphql_spec.rb
+++ b/spec/lib/graphql_spec.rb
@@ -1,17 +1,12 @@
 require 'rails_helper'
 
-# ------------------------------------------------------------------------------
-api_types_creator = GraphQL::ApiTypesCreator.new(API_TYPE_DEFINITIONS)
-created_api_types = api_types_creator.create
-
-query_type_creator = GraphQL::QueryTypeCreator.new(created_api_types)
-QueryType = query_type_creator.create
+api_types = GraphQL::ApiTypesCreator.new(API_TYPE_DEFINITIONS).create
+query_type = GraphQL::QueryTypeCreator.new(api_types).create
 
 ConsulSchema = GraphQL::Schema.define do
-  query QueryType
+  query query_type
   max_depth 12
 end
-# ------------------------------------------------------------------------------
 
 def execute(query_string, context = {}, variables = {})
   ConsulSchema.execute(query_string, context: context, variables: variables)
diff --git a/spec/models/comment_spec.rb b/spec/models/comment_spec.rb
index 09e6a9900..db68a9e4e 100644
--- a/spec/models/comment_spec.rb
+++ b/spec/models/comment_spec.rb
@@ -4,7 +4,6 @@ describe Comment do
 
   let(:comment) { build(:comment) }
 
-  it_behaves_like "public_voters_stats"
   it_behaves_like "has_public_author"
 
   it "is valid" do
diff --git a/spec/models/concerns/public_voters_stats_spec.rb b/spec/models/concerns/public_voters_stats_spec.rb
deleted file mode 100644
index eaa923599..000000000
--- a/spec/models/concerns/public_voters_stats_spec.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-require 'spec_helper'
-
-shared_examples_for 'public_voters_stats' do
-  let(:model) { described_class } # the class that includes the concern
-
-  describe 'votes_above_threshold?' do
-    let(:votable) { create(model.to_s.underscore.to_sym) }
-
-    context 'with default threshold value' do
-      it 'is true when votes are above threshold' do
-        200.times { create(:vote, votable: votable) }
-
-        expect(votable.votes_above_threshold?).to be_truthy
-      end
-
-      it 'is false when votes are under threshold' do
-        199.times { create(:vote, votable: votable) }
-
-        expect(votable.votes_above_threshold?).to be_falsey
-      end
-    end
-
-    context 'with custom threshold value' do
-      it 'is true when votes are above threshold' do
-        create(:setting, key: "#{model.to_s.underscore}_api_votes_threshold", value: '2')
-        2.times { create(:vote, votable: votable) }
-
-        expect(votable.votes_above_threshold?).to be_truthy
-      end
-
-      it 'is false when votes are under threshold' do
-        create(:setting, key: "#{model.to_s.underscore}_api_votes_threshold", value: '2')
-        create(:vote, votable: votable)
-
-        expect(votable.votes_above_threshold?).to be_falsey
-      end
-    end
-  end
-end
diff --git a/spec/models/debate_spec.rb b/spec/models/debate_spec.rb
index 4db0e5f0a..5272b6e7a 100644
--- a/spec/models/debate_spec.rb
+++ b/spec/models/debate_spec.rb
@@ -4,7 +4,6 @@ require 'rails_helper'
 describe Debate do
   let(:debate) { build(:debate) }
 
-  it_behaves_like "public_voters_stats"
   it_behaves_like "has_public_author"
 
   it "should be valid" do
diff --git a/spec/models/proposal_spec.rb b/spec/models/proposal_spec.rb
index 08ed6b384..50df57963 100644
--- a/spec/models/proposal_spec.rb
+++ b/spec/models/proposal_spec.rb
@@ -4,7 +4,6 @@ require 'rails_helper'
 describe Proposal do
   let(:proposal) { build(:proposal) }
 
-  it_behaves_like "public_voters_stats"
   it_behaves_like "has_public_author"
 
   it "should be valid" do
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index ca59cb288..ed0bac164 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -469,10 +469,4 @@ describe User do
 
   end
 
-  describe "#age_range" do
-    it 'returns string representation of age range' do
-      user = create(:user, date_of_birth: Time.current - 41.years)
-      expect(user.age_range).to eq('41..60')
-    end
-  end
 end
diff --git a/spec/models/vote_spec.rb b/spec/models/vote_spec.rb
index 9dc30d95a..8e5db0ce7 100644
--- a/spec/models/vote_spec.rb
+++ b/spec/models/vote_spec.rb
@@ -92,25 +92,6 @@ describe 'Vote' do
     end
   end
 
-  describe 'public_voter' do
-    it 'only returns voter if votable has enough votes' do
-      create(:setting, key: 'proposal_api_votes_threshold', value: '2')
-
-      proposal_1 = create(:proposal)
-      proposal_2 = create(:proposal)
-
-      voter_1 = create(:user)
-      voter_2 = create(:user)
-
-      vote_1 = create(:vote, votable: proposal_1, voter: voter_1)
-      vote_2 = create(:vote, votable: proposal_2, voter: voter_1)
-      vote_3 = create(:vote, votable: proposal_2, voter: voter_2)
-
-      expect(vote_1.public_voter).to be_nil
-      expect(vote_2.public_voter).to eq(voter_1)
-    end
-  end
-
   describe '#public_timestamp' do
     it "truncates created_at timestamp up to minutes" do
       vote = create(:vote, created_at: Time.zone.parse('2016-02-10 15:30:45'))