Remove unused code

#569

app/models/contact.rb

@@ -215,10 +215,6 @@ class Contact < ActiveRecord::Base
       STDOUT << "#{Time.zone.now.utc} - Successfully destroyed #{counter} orphaned contacts\n" unless Rails.env.test?
     end
 
-    def privs
-      where("ident_type = '#{PRIV}'")
-    end
-
     def admin_statuses
       [
         SERVER_UPDATE_PROHIBITED,

app/models/registrar.rb

@@ -9,7 +9,6 @@ class Registrar < ActiveRecord::Base
   has_many :accounts
   has_many :nameservers, through: :domains
   has_many :whois_records
-  has_many :priv_contacts, -> { privs }, class_name: 'Contact'
   has_many :white_ips, dependent: :destroy
 
   delegate :balance, to: :cash_account, allow_nil: true