chore(acr): remove used login server (#9468)

Signed-off-by: Billy Zha <[email protected]>

Author: qweeah

pkg/credentialprovider/azure_acr_helper.go

@@ -141,7 +141,6 @@ func receiveChallengeFromLoginServer(serverAddress, scheme string) (*authDirecti
 }
 
 func performTokenExchange(
-	_ string,
 	directive *authDirective,
 	tenant string,
 	accessToken string) (string, error) {

pkg/credentialprovider/azure_acr_helper_test.go

@@ -136,7 +136,7 @@ func TestPerformTokenExchange(t *testing.T) {
 			}))
 			defer server.Close()
 
-			got, err := performTokenExchange(server.URL, &authDirective{realm: server.URL}, "tenant", "token")
+			got, err := performTokenExchange(&authDirective{realm: server.URL}, "tenant", "token")
 			assert.Equal(t, tt.want, got, tt.name)
 			if tt.wantErr != nil {
 				assert.Contains(t, err.Error(), tt.wantErr.Error(), tt.name)

pkg/credentialprovider/azure_credentials.go

@@ -211,8 +211,7 @@ func (a *acrProvider) getFromACR(ctx context.Context, loginServer string) (strin
 	}
 
 	klog.V(4).Infof("exchanging an acr refresh_token")
-	registryRefreshToken, err := performTokenExchange(
-		loginServer, directive, a.config.TenantID, armAccessToken.Token)
+	registryRefreshToken, err := performTokenExchange(directive, a.config.TenantID, armAccessToken.Token)
 	if err != nil {
 		klog.Errorf("failed to perform token exchange: %s", err)
 		return "", "", err