clean up and remove redundancy

app/celery/process_ses_receipts_tasks.py

@@ -1,10 +1,6 @@
-import enum
-import traceback
 from datetime import datetime, timedelta
-from json import decoder
 
 import iso8601
-import requests
 from celery.exceptions import Retry
 from flask import current_app, json
 from sqlalchemy.orm.exc import NoResultFound
@@ -25,7 +21,6 @@ from app.dao.service_callback_api_dao import (
     get_service_delivery_status_callback_api_for_service,
 )
 from app.models import NOTIFICATION_PENDING, NOTIFICATION_SENDING, Complaint
-from app.notifications.callbacks import create_complaint_callback_data
 
 
 @notify_celery.task(bind=True, name="process-ses-result", max_retries=5, default_retry_delay=300)

app/celery/service_callback_tasks.py

@@ -114,6 +114,7 @@ def create_delivery_status_callback_data(notification, service_callback_api):
         "notification_client_reference": notification.client_reference,
         "notification_to": notification.to,
         "notification_status": notification.status,
+        "notification_provider_response": notification.provider_response, # TODO do we have a test for provider_response
         "notification_created_at": notification.created_at.strftime(DATETIME_FORMAT),
         "notification_updated_at":
             notification.updated_at.strftime(DATETIME_FORMAT) if notification.updated_at else None,