Stop clearing OpenAPIConfig for kube-aggregator

staging/src/k8s.io/kube-aggregator/pkg/apiserver/apiserver.go

@@ -163,11 +163,6 @@ func (cfg *Config) Complete() CompletedConfig {
 
 // NewWithDelegate returns a new instance of APIAggregator from the given config.
 func (c completedConfig) NewWithDelegate(delegationTarget genericapiserver.DelegationTarget) (*APIAggregator, error) {
-	// Prevent generic API server to install OpenAPI handler. Aggregator server
-	// has its own customized OpenAPI handler.
-	openAPIConfig := c.GenericConfig.OpenAPIConfig
-	c.GenericConfig.OpenAPIConfig = nil
-
 	genericServer, err := c.GenericConfig.New("kube-aggregator", delegationTarget)
 	if err != nil {
 		return nil, err
@@ -191,7 +186,7 @@ func (c completedConfig) NewWithDelegate(delegationTarget genericapiserver.Deleg
 		lister:                     informerFactory.Apiregistration().V1().APIServices().Lister(),
 		APIRegistrationInformers:   informerFactory,
 		serviceResolver:            c.ExtraConfig.ServiceResolver,
-		openAPIConfig:              openAPIConfig,
+		openAPIConfig:              c.GenericConfig.OpenAPIConfig,
 		egressSelector:             c.GenericConfig.EgressSelector,
 		proxyCurrentCertKeyContent: func() (bytes []byte, bytes2 []byte) { return nil, nil },
 	}