Issue #3260698: Make it simpler to disable validators in tests

package_manager/tests/src/Kernel/PackageManagerKernelTestBase.php

@@ -56,12 +56,7 @@ abstract class PackageManagerKernelTestBase extends KernelTestBase {
    */
   public function register(ContainerBuilder $container) {
     parent::register($container);
-
-    foreach (static::$disableValidators as $service_id) {
-      if ($container->hasDefinition($service_id)) {
-        $container->getDefinition($service_id)->clearTag('event_subscriber');
-      }
-    }
+    $this->disableValidators(static::$disableValidators, $container);
   }
 
   /**