Remove ignore columns

- Ignore the column 13.11
  https://gitlab.com/gitlab-org/gitlab/-/merge_requests/57260
- Drop the column 13.12
  https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60123
- Remove the ignore rule 14.0 => We are here.

app/models/project_services/jira_tracker_data.rb

@@ -2,18 +2,6 @@
 
 class JiraTrackerData < ApplicationRecord
   include Services::DataFields
-  include IgnorableColumns
-
-  ignore_columns %i[
-    encrypted_proxy_address
-    encrypted_proxy_address_iv
-    encrypted_proxy_port
-    encrypted_proxy_port_iv
-    encrypted_proxy_username
-    encrypted_proxy_username_iv
-    encrypted_proxy_password
-    encrypted_proxy_password_iv
-  ], remove_with: '14.0', remove_after: '2021-05-22'
 
   attr_encrypted :url, encryption_options
   attr_encrypted :api_url, encryption_options