fix: pipeline steps fix

Retire mailings step uses LMS API that was
removed starting from Ironwood release
so it was removed.

Retirement pipiline steps order was different
comparing to retirement state indexes
so the order was changed - enrollments
now placed before forum.

YT:
- https://youtrack.raccoongang.com/issue/PhU-399

tutorretirement/patches/openedx-lms-common-settings

@@ -6,9 +6,6 @@ RETIREMENT_STATES = [
     'LOCKING_ACCOUNT',
     'LOCKING_COMPLETE',
 
-    'RETIRING_EMAIL_LISTS',
-    'EMAIL_LISTS_COMPLETE',
-
     'RETIRING_ENROLLMENTS',
     'ENROLLMENTS_COMPLETE',
 

tutorretirement/templates/retirement/build/retirement/pipeline_config/config.yml

@@ -6,9 +6,8 @@ base_urls:
     {% if NOTES_HOST is defined %}notes: {{ "https" if ENABLE_HTTPS else "http" }}://{{ NOTES_HOST }}{% endif %}
 
 retirement_pipeline:
+    - [ 'RETIRING_ENROLLMENTS', 'ENROLLMENTS_COMPLETE', 'LMS', 'retirement_unenroll' ]
     {% if FORUM_VERSION is defined %}- [ 'RETIRING_FORUMS', 'FORUMS_COMPLETE', 'LMS', 'retirement_retire_forum' ]{% endif %}
     {% if NOTES_HOST is defined %}- [ 'RETIRING_NOTES', 'NOTES_COMPLETE', 'LMS', 'retirement_retire_notes' ]{% endif %}
-    - [ 'RETIRING_EMAIL_LISTS', 'EMAIL_LISTS_COMPLETE', 'LMS', 'retirement_retire_mailings' ]
-    - [ 'RETIRING_ENROLLMENTS', 'ENROLLMENTS_COMPLETE', 'LMS', 'retirement_unenroll' ]
     - [ 'RETIRING_LMS_MISC', 'LMS_MISC_COMPLETE', 'LMS', 'retirement_lms_retire_misc' ]
     - [ 'RETIRING_LMS', 'LMS_COMPLETE', 'LMS', 'retirement_lms_retire' ]