Remove resourcemanager from conroller public API (#664)

We still use it internally, but this does not need to be part of the
public API. Instead just have callers pass us the relevent listers and
we create our own resource manager.

cmd/virtual-kubelet/commands/root/root.go

@@ -181,7 +181,9 @@ func runRootCommand(ctx context.Context, c Opts) error {
 		PodInformer:     podInformer,
 		EventRecorder:   eb.NewRecorder(scheme.Scheme, corev1.EventSource{Component: path.Join(pNode.Name, "pod-controller")}),
 		Provider:        p,
-		ResourceManager: rm,
+		SecretLister:    secretInformer.Lister(),
+		ConfigMapLister: configMapInformer.Lister(),
+		ServiceLister:   serviceInformer.Lister(),
 	})
 	if err != nil {
 		return errors.Wrap(err, "error setting up pod controller")