Revert "disable TSB client cert and front proxy auth until aggregatio…

…n is on by default"

This reverts commit a564e15.

pkg/openservicebroker/cmd/server/start.go

@@ -92,23 +92,9 @@ func (o TemplateServiceBrokerServerOptions) Config() (*server.TemplateServiceBro
 	if err := o.SecureServing.ApplyTo(serverConfig); err != nil {
 		return nil, err
 	}
-
-	// TODO restore this after https://github.com/openshift/openshift-ansible/issues/5056 is fixed
-	//if err := o.Authentication.ApplyTo(serverConfig); err != nil {
-	//	return nil, err
-	//}
-	// the TSB server *can* limp along without terminating client certs or front proxy authn. Do that for now
-	// this wiring is a bit tricky.
-	cfg, err := o.Authentication.ToAuthenticationConfig()
-	if err != nil {
-		return nil, err
-	}
-	authenticator, _, err := cfg.New()
-	if err != nil {
+	if err := o.Authentication.ApplyTo(serverConfig); err != nil {
 		return nil, err
 	}
-	serverConfig.Authenticator = authenticator
-
 	if err := o.Authorization.ApplyTo(serverConfig); err != nil {
 		return nil, err
 	}