n-novnc caused the job to fails as it was trying to clone
the service from the network, remove this service as its not
really needed
Change-Id: I7b836443ccac2e90fcbd5de97b02da1aaa048ccb
Enable a simple test for stackforge/dragonflow, verify
that we can bring devstack up with dragonflow
Currently this is non-voting
Change-Id: I840a042acc009cc48eb41f8df04b80f59c4617b0