Normalizer should not use the backend anymore
We are transitioning from backend to metainfo more and more. While most normalizer already use the metainfo in many cases, there are still some occurences where a normalizer uses its self._backend
variable. This should be replaced. There are two candidates self.entry_archive
and self.section_run
.
@ladinesa Please omit everything in nomad.normalizing.encyclopedia
for now.