Fix DeletingLoadBalancer event generation.

[a-robinson]

release-note:

Fix DeletingLoadBalancer event generation.

Also patch up a log statement to log the service's namespace and name
rather than potentially just logging kind:"" apiVersion:"".

It doesn't work as written because service is always nil on this line. If it wasn't, then we wouldn't have taken this branch. deltaService is what contains the info that we have about the service.

Example of how the event generation fails as currently written:

E0426 22:18:41.726835      10 event.go:257] Could not construct reference to: '&api.Service{TypeMeta:unversioned.TypeMeta{Kind:"", APIVersion:""}, ObjectMeta:api.ObjectMeta{Name:"", GenerateName:"", Namespace:"", SelfLink:"", UID:"", ResourceVersion:"", Generation:0, CreationTimestamp:unversioned.Time{Time:time.Time{sec:0, nsec:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*unversioned.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string(nil), Annotations:map[string]string(nil)}, Spec:api.ServiceSpec{Type:"", Ports:[]api.ServicePort(nil), Selector:map[string]string(nil), ClusterIP:"", ExternalIPs:[]string(nil), LoadBalancerIP:"", SessionAffinity:""}, Status:api.ServiceStatus{LoadBalancer:api.LoadBalancerStatus{Ingress:[]api.LoadBalancerIngress(nil)}}}' due to: 'selfLink was empty, can't make reference'. Will not report event: 'Normal' 'DeletingLoadBalancer' 'Deleting load balancer'

[k8s-cherrypick-bot]

Removing label cherrypick-candidate because no release milestone was set. This is an invalid state and thus this PR is not being considered for cherry-pick to any release branch. Please add an appropriate release milestone and then re-add the label.

[a-robinson]

cc @girishkalele

[k8s-bot]

GCE e2e build/test passed for commit ed15931.

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[davidopp]

LGTM

[k8s-github-robot]

@k8s-bot test this [submit-queue is verifying that this PR is safe to merge]

[k8s-bot]

GCE e2e build/test passed for commit ed15931.

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[k8s-github-robot]

Automatic merge from submit-queue

[roberthbailey]

@eparis I merged the cherry pick for this PR but the bot hasn't noticed yet (and it's definitely been running according to the bot stats tab on http://cherrypick.k8s.io/#/info). Any ideas why?