Replace ioutil.Discard with io.Discard (#20707)

services/marketplace/client.go

@@ -6,7 +6,6 @@ package marketplace
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strings"
@@ -114,7 +113,7 @@ func (c *Client) GetLatestPlugin(filter *model.MarketplacePluginFilter) (*model.
 // closeBody ensures the Body of an http.Response is properly closed.
 func closeBody(r *http.Response) {
 	if r.Body != nil {
-		_, _ = io.Copy(ioutil.Discard, r.Body)
+		_, _ = io.Copy(io.Discard, r.Body)
 		_ = r.Body.Close()
 	}
 }

services/remotecluster/sendprofileImage_test.go

@@ -9,7 +9,6 @@ import (
 	"image/color"
 	"image/png"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"sync"
@@ -35,7 +34,7 @@ func TestService_sendProfileImageToRemote(t *testing.T) {
 	shouldError := &flag{}
 
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		defer io.Copy(ioutil.Discard, r.Body)
+		defer io.Copy(io.Discard, r.Body)
 
 		if shouldError.get() {
 			w.WriteHeader(http.StatusInternalServerError)