Remove legacy-tempest-dsvm-neutron-nova-next-full usage
Remove legacy-tempest-dsvm-neutron-nova-next-full usage

The nova-next job is being defined within the nova repo
and will be added directly to .zuul.yaml in devstack.

Depends-On: I24a5f73c29094a23e2fdef8ee8b43601300af593
Depends-On: I28971dc7e5cb0b5cf9698e5251a7bb099e63f3db
Change-Id: I36d96f89b3e5323746fcbcef5cc7e4d0384a184d

openstack-infra/project-config,openstack-infra/project-config