Remove specifications of the sparse deposit.
Motivations:
- it was never implemented because we don't currently need it
- if we ever need it, we might go for SWORDv3's ByReference instead
Migrated from D4646 (view on Phabricator)
Staging instance, all changes can be removed at any time
Motivations:
Migrated from D4646 (view on Phabricator)