Issue #3285631: Make it impossible to call CronUpdater::begin() directly

src/CronUpdater.php

@@ -97,13 +97,7 @@ class CronUpdater extends Updater {
    * {@inheritdoc}
    */
   final public function begin(array $project_versions, ?int $timeout = 300): string {
-    // Prevent mischievous callers from starting an update even if unattended
-    // updates are disabled. To start an update programmatically, use
-    // \Drupal\automatic_updates\Updater::begin().
-    if ($this->getMode() === static::DISABLED) {
-      throw new \BadMethodCallException(__METHOD__ . '() cannot be called directly.');
-    }
-    return parent::begin($project_versions, $timeout);
+      throw new \BadMethodCallException($project_versions, $timeout);
   }
 
   /**