remove presence of raw file/url validation
remove presence of raw file/url validation

This seems to be an issue when creating ontology versions, so
according to the meetup, the validations (maybe erroneous)
validations will be removed, for now.

ontohub/ontohub,ontohub/ontohub,ontohub/ontohub,ontohub/ontohub,ontohub/ontohub,ontohub/ontohub