[000408] Species should likely be changed from Rattus norvegicus to unidentified

[kabilar]

Some of the NWB files in https://dandiarchive.org/dandiset/000408/draft have the species as unidentified (https://purl.obolibrary.org/obo/NCBITaxon_32644), but other files say the species is Rattus norvegicus and the Experiment description says in vitro experiment, please disregard animal. So these files should likely be changed to unidentifed as well.