Removes migrated legacy-neutron-lbaasv2-dsvm-*
Removes migrated legacy-neutron-lbaasv2-dsvm-*

This patch removes the legacy-neutron-lbaasv2-dsvm-* jobs that have been
migrated into the neutron-lbaas repository[1].

[1] https://review.openstack.org/#/c/512882/

Needed-By: Ib1ff4a25c761b704c9095f930abaecf097f97069

Change-Id: I1aae63bf242c479d44c849c9378deb6d1e56a2e3

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