Use the correct bucket for storing contact lists

We don’t want to muddy them up with the normal CSV uploads.

I’ve tried to reuse the existing S3 code where possible because it’s
well tested.

Buckets have already been created.

app/models/service.py

@@ -6,7 +6,6 @@ from notifications_utils.timezones import local_timezone
 from werkzeug.utils import cached_property
 
 from app.models import JSONModel
-from app.models.contact_list import ContactList
 from app.models.job import (
     ImmediateJobs,
     PaginatedJobs,
@@ -133,9 +132,6 @@ class Service(JSONModel):
             return []
         return ScheduledJobs(self.id)
 
-    def save_contact_list(self, upload_id):
-        return ContactList.create(self.id, upload_id)
-
     @cached_property
     def invited_users(self):
         return InvitedUsers(self.id)