Allow to remove poll answers

app/controllers/polls/answers_controller.rb

@@ -0,0 +1,19 @@
+class Polls::AnswersController < ApplicationController
+  load_and_authorize_resource :question, class: "::Poll::Question"
+  load_and_authorize_resource :answer, class: "::Poll::Answer",
+                                       through: :question,
+                                       through_association: :answers
+
+  def destroy
+    @answer.destroy!
+
+    respond_to do |format|
+      format.html do
+        redirect_to request.referer
+      end
+      format.js do
+        render "polls/questions/answers"
+      end
+    end
+  end
+end