87e1806697cd7dfffb7cb0de73c85e889365780d removed the OwnerReferences
field from the DaemonSet, which makes sense since the Service may now be
in a different namespace than the DaemonSet and cross-namespace owner
references are not supported.  Unfortunately, we were relying on
garbage collection to delete the DameonSet, so this started leaving
orphaned DaemonSets when Services were deleted.

We don't want to add an a Service OnRemove handler, since this will add
finalizers to all Services, not just LoadBalancers services, causing
conformance tests to fail. Instead, manage our own finalizers, and
restore the DaemonSet removal Event that was removed by the same commit.
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>