diff --git a/core/lib/Drupal/Core/Validation/ConstraintManager.php b/core/lib/Drupal/Core/Validation/ConstraintManager.php
index 12bbf11..d2e84c7 100644
--- a/core/lib/Drupal/Core/Validation/ConstraintManager.php
+++ b/core/lib/Drupal/Core/Validation/ConstraintManager.php
@@ -66,10 +66,7 @@ public function __construct(\Traversable $namespaces, CacheBackendInterface $cac
    *   A validation constraint plugin.
    */
   public function create($name, $options) {
-    if (!isset($options)) {
-      $options = array();
-    }
-    elseif (!is_array($options)) {
+    if (!is_array($options)) {
       // Plugins need an array as configuration, so make sure we have one.
       // The constraint classes support passing the options as part of the
       // 'value' key also.
diff --git a/core/modules/aggregator/lib/Drupal/aggregator/Entity/Item.php b/core/modules/aggregator/lib/Drupal/aggregator/Entity/Item.php
index 3bb64a9..a09ba6f 100644
--- a/core/modules/aggregator/lib/Drupal/aggregator/Entity/Item.php
+++ b/core/modules/aggregator/lib/Drupal/aggregator/Entity/Item.php
@@ -49,17 +49,6 @@ public function label() {
   /**
    * {@inheritdoc}
    */
-  public function postCreate(EntityStorageControllerInterface $storage_controller) {
-    parent::postCreate($storage_controller);
-
-    if ($this->getPostedTime() === NULL) {
-      $this->setPostedTime(REQUEST_TIME);
-    }
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public static function baseFieldDefinitions($entity_type) {
     $fields['iid'] = FieldDefinition::create('integer')
       ->setLabel(t('Aggregator item ID'))