Also impacts test_mail_sms.
Purpose: let a cron do delete records to end the
sending transaction sooner.
Removing the foreign key between sms_sms and mailing_trace
is necessary as traces may have to be updated due to
delivery reports.
This is why we do it here and not with notifications
because only traces will trigger updates of a possibly
massive number of records and repeated concurrent updates.
We also replace the now obsolete "sms_sms_X" prefix as there
are not many "sms_id" to distinguish from.
Task-2560666
Part-of: odoo/odoo#133392
Florian Charlier
e8878a8b4c