Encoding the names to utf-8 leads to unwanted failures such as:
as well as
TypeError: sequence item 0: expected str instance, bytes found
Removing the two calls to .encode() solves those issues.
It also correct a tiny deprecation warning, moving from LOG.warn to
This is a train-only patch since later the whole thing was moved out of
tripleoclient in favor of validations-libs and/or validations-common.