Remove <sword:request>.
Motivation:
- it is not a SWORD tag
- I don't think there is any use for this
- Its content is buggy, as it only handles one level of hierarchy for the metadata values.
Migrated from D4524 (view on Phabricator)
Staging instance, all changes can be removed at any time
Motivation:
Migrated from D4524 (view on Phabricator)