Part of the removal of OPENSTACK_NOVA_EXTENSIONS_BLACKLIST (2/3) References to nova extensions are cleaned up. The logic to fetch nova extension list is finally dropped. Change-Id: If4876634276eff37ab0a18a49e6e97851d41911b
Part of the removal of OPENSTACK_NOVA_EXTENSIONS_BLACKLIST (2/3) References to nova extensions are cleaned up. The logic to fetch nova extension list is finally dropped. Change-Id: If4876634276eff37ab0a18a49e6e97851d41911b