cleanup unused code for kubeapiserver

pkg/kubeapiserver/options/serving.go

@@ -18,10 +18,8 @@ limitations under the License.
 package options
 
 import (
-	"fmt"
 	"net"
 
-	utilnet "k8s.io/apimachinery/pkg/util/net"
 	genericoptions "k8s.io/apiserver/pkg/server/options"
 )
 
@@ -39,34 +37,3 @@ func NewSecureServingOptions() *genericoptions.SecureServingOptionsWithLoopback
 	}
 	return o.WithLoopback()
 }
-
-// NewInsecureServingOptions gives default values for the kube-apiserver.
-// TODO: switch insecure serving off by default
-func NewInsecureServingOptions() *genericoptions.DeprecatedInsecureServingOptionsWithLoopback {
-	o := genericoptions.DeprecatedInsecureServingOptions{
-		BindAddress: net.ParseIP("127.0.0.1"),
-		BindPort:    8080,
-	}
-	return o.WithLoopback()
-}
-
-// DefaultAdvertiseAddress sets the field AdvertiseAddress if
-// unset. The field will be set based on the SecureServingOptions. If
-// the SecureServingOptions is not present, DefaultExternalAddress
-// will fall back to the insecure ServingOptions.
-func DefaultAdvertiseAddress(s *genericoptions.ServerRunOptions, insecure *genericoptions.DeprecatedInsecureServingOptions) error {
-	if insecure == nil {
-		return nil
-	}
-
-	if s.AdvertiseAddress == nil || s.AdvertiseAddress.IsUnspecified() {
-		hostIP, err := utilnet.ResolveBindAddress(insecure.BindAddress)
-		if err != nil {
-			return fmt.Errorf("unable to find suitable network address.error='%v'. "+
-				"Try to set the AdvertiseAddress directly or provide a valid BindAddress to fix this", err)
-		}
-		s.AdvertiseAddress = hostIP
-	}
-
-	return nil
-}