Make isis hist nexus read params again. re #8608
Revert "Make isis hist nexus read params again. re #8608"

This reverts commit f3e33dedd4ffac8a7b7b9f55099bdbe329c3644a.
Ensure sample and log loading as before. re #8608
Refs #* master. Merge remote-tracking branch 'origin/feature/8608_instParamDontRead'