Remove video_url attr from Admin::Poll::Question form

spec/features/admin/poll/questions_spec.rb

@@ -36,19 +36,16 @@ feature 'Admin poll questions' do
       Pursued by the Empire's sinister agents, Princess Leia races home aboard her starship, custodian of the stolen plans that can save her
        people and restore freedom to the galaxy....
     }
-    video_url = "https://puppyvideos.com"
 
     visit admin_questions_path
     click_link "Create question"
 
     select 'Movies', from: 'poll_question_poll_id'
     fill_in 'poll_question_title', with: title
-    fill_in 'poll_question_video_url', with: video_url
 
     click_button 'Save'
 
     expect(page).to have_content(title)
-    expect(page).to have_content(video_url)
   end
 
   scenario 'Create from successful proposal index' do