Merge branch '276090-remove_namespace_storage_size_limit_ignore_statement' into 'master'

Remove ignore statement for namespace_storage_size_limit

See merge request gitlab-org/gitlab!47385

app/models/application_setting.rb

@@ -5,9 +5,6 @@ class ApplicationSetting < ApplicationRecord
   include CacheMarkdownField
   include TokenAuthenticatable
   include ChronicDurationAttribute
-  include IgnorableColumns
-
-  ignore_column :namespace_storage_size_limit, remove_with: '13.5', remove_after: '2020-09-22'
 
   INSTANCE_REVIEW_MIN_USERS = 50
   GRAFANA_URL_ERROR_MESSAGE = 'Please check your Grafana URL setting in ' \