cniserver: fail if cniserver socket cannot be removed
cniserver: fail if cniserver socket cannot be removed

If for some reason another ovnkube is running and already
bound to the socket, this instance should quit. We need to
remove it and recreate it to (a) ensure this instance
owns it, and (b) that it has the right (root-only) permissions.

Signed-off-by: Dan Williams <aeade43d0f8ae14e7c44fa81fe17c1635ae376fe@redhat.com>

shettyg/ovn-kubernetes,shettyg/ovn-kubernetes,shettyg/ovn-kubernetes