Remove unused methods

app/models/domain.rb

@@ -220,17 +220,6 @@ class Domain < ActiveRecord::Base
   end
 
   class << self
-    def included
-      includes(
-        :registrant,
-        :registrar,
-        :nameservers,
-        :whois_record,
-        { tech_contacts: :registrar },
-        { admin_contacts: :registrar }
-      )
-    end
-
     def nameserver_required?
       Setting.nameserver_required
     end

app/models/epp/domain.rb

@@ -38,16 +38,6 @@ class Epp::Domain < Domain
     ok
   end
 
-  before_save :link_contacts
-  def link_contacts
-    #TODO: cleanup cache if we think to cache dynamic statuses
-  end
-
-  after_destroy :unlink_contacts
-  def unlink_contacts
-    #TODO: cleanup cache if we think to cache dynamic statuses
-  end
-
   class << self
     def new_from_epp(frame, current_user)
       domain = Epp::Domain.new

app/models/registrar.rb

@@ -105,11 +105,6 @@ class Registrar < ActiveRecord::Base
     cash_account.account_activities.create!(args)
   end
 
-  def credit!(args)
-    args[:currency] = 'EUR'
-    cash_account.account_activities.create!(args)
-  end
-
   def address
     [street, city, state, zip].reject(&:blank?).compact.join(', ')
   end

app/models/whois_record.rb

@@ -9,20 +9,6 @@ class WhoisRecord < ActiveRecord::Base
   after_save :update_whois_server
   after_destroy :destroy_whois_record
 
-  class << self
-    def included
-      includes(
-        domain: [
-          :registrant,
-          :registrar,
-          :nameservers,
-          { tech_contacts: :registrar },
-          { admin_contacts: :registrar }
-        ]
-      )
-    end
-  end
-
   def self.find_by_name(name)
     WhoisRecord.where("lower(name) = ?", name.downcase)
   end