kubeadm: remove unused function in util/staticpod

Signed-off-by: xin.li <xin.li@daocloud.io>

cmd/kubeadm/app/util/staticpod/utils.go

@@ -151,22 +151,6 @@ func VolumeMountMapToSlice(volumeMounts map[string]v1.VolumeMount) []v1.VolumeMo
 	return v
 }
 
-// GetExtraParameters builds a list of flag arguments two string-string maps, one with default, base commands and one with overrides
-func GetExtraParameters(overrides map[string]string, defaults map[string]string) []string {
-	var command []string
-	for k, v := range overrides {
-		if len(v) > 0 {
-			command = append(command, fmt.Sprintf("--%s=%s", k, v))
-		}
-	}
-	for k, v := range defaults {
-		if _, overrideExists := overrides[k]; !overrideExists {
-			command = append(command, fmt.Sprintf("--%s=%s", k, v))
-		}
-	}
-	return command
-}
-
 // PatchStaticPod applies patches stored in patchesDir to a static Pod.
 func PatchStaticPod(pod *v1.Pod, patchesDir string, output io.Writer) (*v1.Pod, error) {
 	// Marshal the Pod manifest into YAML.

cmd/kubeadm/app/util/staticpod/utils_test.go

@@ -21,7 +21,6 @@ import (
 	"os"
 	"path/filepath"
 	"reflect"
-	"sort"
 	"strconv"
 	"strings"
 	"testing"
@@ -576,54 +575,6 @@ func TestVolumeMountMapToSlice(t *testing.T) {
 	}
 }
 
-func TestGetExtraParameters(t *testing.T) {
-	var tests = []struct {
-		name      string
-		overrides map[string]string
-		defaults  map[string]string
-		expected  []string
-	}{
-		{
-			name: "with admission-control default NamespaceLifecycle",
-			overrides: map[string]string{
-				"admission-control": "NamespaceLifecycle,LimitRanger",
-			},
-			defaults: map[string]string{
-				"admission-control": "NamespaceLifecycle",
-				"allow-privileged":  "true",
-			},
-			expected: []string{
-				"--admission-control=NamespaceLifecycle,LimitRanger",
-				"--allow-privileged=true",
-			},
-		},
-		{
-			name: "without admission-control default",
-			overrides: map[string]string{
-				"admission-control": "NamespaceLifecycle,LimitRanger",
-			},
-			defaults: map[string]string{
-				"allow-privileged": "true",
-			},
-			expected: []string{
-				"--admission-control=NamespaceLifecycle,LimitRanger",
-				"--allow-privileged=true",
-			},
-		},
-	}
-
-	for _, rt := range tests {
-		t.Run(rt.name, func(t *testing.T) {
-			actual := GetExtraParameters(rt.overrides, rt.defaults)
-			sort.Strings(actual)
-			sort.Strings(rt.expected)
-			if !reflect.DeepEqual(actual, rt.expected) {
-				t.Errorf("failed getExtraParameters:\nexpected:\n%v\nsaw:\n%v", rt.expected, actual)
-			}
-		})
-	}
-}
-
 const (
 	validPod = `
 apiVersion: v1