Remove unused Domain#set_expired

#235

app/models/domain.rb

@@ -602,19 +602,6 @@ class Domain < ActiveRecord::Base
     self.statuses |= [DomainStatus::EXPIRED]
   end
 
-  def set_expired
-    # TODO: currently valid_to attribute update logic is open
-    # self.valid_to = valid_from + self.class.convert_period_to_time(period, period_unit)
-    self.outzone_at = (valid_to + Setting.expire_warning_period.days).utc.beginning_of_day
-    self.delete_at = (outzone_at + Setting.redemption_grace_period.days).utc.beginning_of_day
-    statuses << DomainStatus::EXPIRED
-  end
-
-  def set_expired!
-    set_expired
-    save(validate: false)
-  end
-
   def pending_update?
     statuses.include?(DomainStatus::PENDING_UPDATE) && !statuses.include?(DomainStatus::FORCE_DELETE)
   end

spec/models/domain_spec.rb

@@ -350,17 +350,6 @@ RSpec.describe Domain do
       @domain.statuses.include?(DomainStatus::SERVER_HOLD).should == true
     end
 
-
-    it 'should set expired status and update outzone_at and delete_at' do
-      domain = Fabricate(:domain)
-      domain.statuses.should == ['ok']
-      domain.set_expired
-      domain.changes.keys.should == ['statuses', 'outzone_at', 'delete_at']
-      domain.save
-
-      domain.statuses.should == ['expired']
-    end
-
     it 'should know its create price' do
       Fabricate(:pricelist, {
         category: 'ee',