Don't run large-ops test on repos that it doesn't touch

Remove jobs from:
* Cinder - large-ops doesn't cover cinder yet
* Heat
* Horizon
* ceilometer
* neutronclient - only run neutron version of test
* oslo.config - not sure how this could break just the large-ops test

Change-Id: I096c8c33d9538fdd569741ddcc0a4cc11fc7697c