🔥 [open-zaak/open-zaak#1203] Remove old envvars

remove old notification retry envvars, and update the docs accordingly

docs/delivery_guarantees.rst

@@ -69,15 +69,7 @@ On delivery failure, Open Notificaties will automatically retry delivery, with
 exponential backoff. E.g. the first retry will be done after one second, the next after
 two seconds and the third after 4 seconds.
 
-The parameters for this can be :ref:`configured <installation_config_index>`:
-
-* ``NOTIFICATION_DELIVERY_MAX_RETRIES``: the maximum number of automatic retries. After
-  this amount of retries, Open Notificaties stops trying to deliver the message.
-* ``NOTIFICATION_DELIVERY_RETRY_BACKOFF``: if specified, a factor applied to the
-  exponential backoff. This allows you to tune how quickly automatic retries are
-  performed.
-* ``NOTIFICATION_DELIVERY_RETRY_BACKOFF_MAX``: an upper limit to the exponential
-  backoff time.
+The parameters for this are described and can be configured in the admin interface, under ``Configuration > Notification component configuration``.
 
 On top of that, via the admin interface you can manually select notifications to retry
 delivery for.

docs/installation/configuration/env_config.md

@@ -98,16 +98,6 @@ on Docker, since `localhost` is contained within the container:
 
 * `CELERY_RESULT_BACKEND`: the backend where the results of tasks will be stored (default: `redis://localhost:6379/1`)
 
-* `NOTIFICATION_DELIVERY_MAX_RETRIES`: the maximum number of retries Celery will do if sending a notification failed.
-
-* `NOTIFICATION_DELIVERY_RETRY_BACKOFF`: a boolean or a number. If this option is set to
-  `True`, autoretries will be delayed following the rules of exponential backoff. If
-  this option is set to a number, it is used as a delay factor.
-
-* `NOTIFICATION_DELIVERY_RETRY_BACKOFF_MAX`: an integer, specifying number of seconds.
-  If ``retry_backoff`` is enabled, this option will set a maximum delay in seconds
-  between task autoretries. By default, this option is set to 48 seconds.
-
 ### Cross-Origin-Resource-Sharing
 
 The following parameters control the CORS policy.

src/nrc/conf/includes/base.py

@@ -469,13 +469,6 @@
 CELERY_BROKER_URL = config("CELERY_BROKER_URL", "amqp://127.0.0.1:5672//")
 CELERY_RESULT_BACKEND = config("CELERY_RESULT_BACKEND", "redis://localhost:6379/1")
 
-# Retry settings for delivering notifications to subscriptions
-NOTIFICATION_DELIVERY_MAX_RETRIES = config("NOTIFICATION_DELIVERY_MAX_RETRIES", 5)
-NOTIFICATION_DELIVERY_RETRY_BACKOFF = config("NOTIFICATION_DELIVERY_RETRY_BACKOFF", 3)
-NOTIFICATION_DELIVERY_RETRY_BACKOFF_MAX = config(
-    "NOTIFICATION_DELIVERY_RETRY_BACKOFF_MAX", 48
-)
-
 #
 # DJANGO-ADMIN-INDEX
 #