DEV: Promote historic post_deploy migrations (#34273)

This commit promotes all post_deploy migrations which existed in
Discourse v3.4.0 (timestamp <= 20241023041126)

app/models/notification.rb

@@ -1,10 +1,6 @@
 # frozen_string_literal: true
 
 class Notification < ActiveRecord::Base
-  self.ignored_columns = [
-    :old_id, # TODO: Remove once 20240829140226_drop_old_notification_id_columns has been promoted to pre-deploy
-  ]
-
   attr_accessor :acting_user
   attr_accessor :acting_username
 

app/models/shelved_notification.rb

@@ -1,10 +1,6 @@
 # frozen_string_literal: true
 
 class ShelvedNotification < ActiveRecord::Base
-  self.ignored_columns = [
-    :old_notification_id, # TODO: Remove once 20240829140226_drop_old_notification_id_columns has been promoted to pre-deploy
-  ]
-
   belongs_to :notification
 
   def process

app/models/user.rb

@@ -1,13 +1,6 @@
 # frozen_string_literal: true
 
 class User < ActiveRecord::Base
-  self.ignored_columns = [
-    :salt, # TODO: Remove when DropPasswordColumnsFromUsers has been promoted to pre-deploy.
-    :password_hash, # TODO: Remove when DropPasswordColumnsFromUsers has been promoted to pre-deploy.
-    :password_algorithm, # TODO: Remove when DropPasswordColumnsFromUsers has been promoted to pre-deploy.
-    :old_seen_notification_id, # TODO: Remove once 20240829140226_drop_old_notification_id_columns has been promoted to pre-deploy
-  ]
-
   include Searchable
   include Roleable
   include HasCustomFields

app/models/user_badge.rb

@@ -1,10 +1,6 @@
 # frozen_string_literal: true
 
 class UserBadge < ActiveRecord::Base
-  self.ignored_columns = [
-    :old_notification_id, # TODO: Remove once 20240829140226_drop_old_notification_id_columns has been promoted to pre-deploy
-  ]
-
   belongs_to :badge
   belongs_to :user
   belongs_to :granted_by, class_name: "User"