deposit: leftover cleanup
deposit: leftover cleanup

* Removes template code that should not be there and might lead to an
  error when strict template checking is enabled, e.g. in master.

Signed-off-by: Marco Neumann <3829486b93ec44395f0b980424bae9b6fb07b7bc@crepererum.net>

inveniosoftware/invenio-deposit,inveniosoftware/invenio-deposit,inveniosoftware/invenio-deposit,inveniosoftware/invenio-deposit