storage*: Drop origin_visit_upsert endpoint
This removes the no longer used endpoint (from !933 (closed) onward, we migrated away from it).
Depends on !877 (closed) Related to T2310
Test Plan
tox
Migrated from D3281 (view on Phabricator)
Staging instance, all changes can be removed at any time
This removes the no longer used endpoint (from !933 (closed) onward, we migrated away from it).
Depends on !877 (closed) Related to T2310
tox
Migrated from D3281 (view on Phabricator)