BibFormat: fix call to bfe_primary_report_number
BibFormat: fix call to bfe_primary_report_number

* Removes usage of 'link' parameter, which does not exist for
  bfe_primary_report_number (which is an "emulated" format element
  from BibIndex logical fields)

  (cherry-picked from 125456dbb137e533b77438d8af677cfca874a88d)

inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter,tiborsimko/invenio-formatter,inveniosoftware/invenio-formatter,inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter