Removes answerable/non_answerable questions in polls

Now they are either all answerable or non-answerable, so it is not
worth it to make the distinction in code

app/controllers/polls_controller.rb

@@ -9,8 +9,7 @@ class PollsController < ApplicationController
   end
 
   def show
-    @answerable_questions     = @poll.questions.answerable_by(current_user).for_render.sort_for_list
-    @non_answerable_questions = @poll.questions.where.not(id: @answerable_questions.map(&:id)).for_render.sort_for_list
+    @questions     = @poll.questions.for_render.sort_for_list
 
     @answers_by_question_id = {}
     poll_partial_results = Poll::PartialResult.by_question(@poll.question_ids).by_author(current_user.try(:id))

app/views/polls/show.html.erb

@@ -35,21 +35,7 @@
 
 <div class="row margin-top">
   <div class="small-12 medium-9 column">
-    <% @answerable_questions.each do |question| %>
-      <%= render 'polls/questions/question', question: question %>
-    <% end %>
-
-    <% if can?(:answer, @poll) &&
-          @non_answerable_questions.present? %>
-      <div class="callout warning margin-top">
-        <h2 class="questions-callout">
-          <%= t("polls.show.cant_answer_wrong_geozone",
-              count: @non_answerable_questions.count) %>
-        </h2>
-      </div>
-    <% end %>
-
-    <% @non_answerable_questions.each do |question| %>
+    <% @questions.each do |question| %>
       <%= render 'polls/questions/question', question: question %>
     <% end %>
   </div>