core/loader: Remove origin id references and fix tests
Origin ids are now more supported in storage API so remove any remaining
references in swh-loader-core
to fix tests.
Migrated from D2208 (view on Phabricator)
Origin ids are now more supported in storage API so remove any remaining
references in swh-loader-core
to fix tests.
Migrated from D2208 (view on Phabricator)