Remove unused `Poll.unattached` scope (#33350)

app/models/poll.rb

@@ -40,7 +40,6 @@ class Poll < ApplicationRecord
   validates_with PollValidator, on: :create, if: :local?
 
   scope :attached, -> { where.not(status_id: nil) }
-  scope :unattached, -> { where(status_id: nil) }
 
   before_validation :prepare_options, if: :local?
   before_validation :prepare_votes_count

spec/models/poll_spec.rb

@@ -20,14 +20,6 @@ RSpec.describe Poll do
         expect(results).to eq([attached_poll])
       end
     end
-
-    describe '.unattached' do
-      it 'finds the correct records' do
-        results = described_class.unattached
-
-        expect(results).to eq([not_attached_poll])
-      end
-    end
   end
 
   describe '#reset_votes!' do