Remove registrant_verifications.domain_name database column

It is not used nor needed.

app/controllers/admin/pending_deletes_controller.rb

@@ -29,7 +29,6 @@ module Admin
       # steal token
       token = @domain.registrant_verification_token
       @registrant_verification = RegistrantVerification.new(domain_id: @domain.id,
-                                                            domain_name: @domain.name,
                                                             verification_token: token)
     end
 

app/controllers/admin/pending_updates_controller.rb

@@ -26,7 +26,6 @@ module Admin
       # steal token
       token = @domain.registrant_verification_token
       @registrant_verification = RegistrantVerification.new(domain_id: @domain.id,
-                                                            domain_name: @domain.name,
                                                             verification_token: token)
     end
 

app/controllers/registrant/domain_delete_confirms_controller.rb

@@ -16,7 +16,6 @@ class Registrant::DomainDeleteConfirmsController < RegistrantController
     end
 
     @registrant_verification = RegistrantVerification.new(domain_id: @domain.id,
-                                                          domain_name: @domain.name,
                                                           verification_token: params[:token])
 
     initiator = current_registrant_user ? current_registrant_user.username :

app/controllers/registrant/domain_update_confirms_controller.rb

@@ -16,7 +16,6 @@ class Registrant::DomainUpdateConfirmsController < RegistrantController
     end
 
     @registrant_verification = RegistrantVerification.new(domain_id: @domain.id,
-                                                          domain_name: @domain.name,
                                                           verification_token: params[:token])
 
     initiator = current_registrant_user ? current_registrant_user.username :

app/models/registrant_verification.rb

@@ -11,7 +11,7 @@ class RegistrantVerification < ApplicationRecord
 
   belongs_to :domain
 
-  validates :verification_token, :domain_name, :domain, :action, :action_type, presence: true
+  validates :verification_token, :domain, :action, :action_type, presence: true
 
   def domain_registrant_change_confirm!(initiator)
     self.action_type = DOMAIN_REGISTRANT_CHANGE

db/migrate/20191206183853_remove_registrant_verifications_domain_name.rb

@@ -0,0 +1,5 @@
+class RemoveRegistrantVerificationsDomainName < ActiveRecord::Migration[5.0]
+  def change
+    remove_column :registrant_verifications, :domain_name
+  end
+end

db/structure.sql

@@ -1963,7 +1963,6 @@ ALTER SEQUENCE public.que_jobs_job_id_seq OWNED BY public.que_jobs.job_id;
 
 CREATE TABLE public.registrant_verifications (
     id integer NOT NULL,
-    domain_name character varying NOT NULL,
     verification_token character varying NOT NULL,
     created_at timestamp without time zone,
     updated_at timestamp without time zone,
@@ -4361,6 +4360,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20191007123000'),
 ('20191008024334'),
 ('20191024153351'),
-('20191024160038');
+('20191024160038'),
+('20191206183853');