diff --git a/core/lib/Drupal/Core/Render/Element/RenderElement.php b/core/lib/Drupal/Core/Render/Element/RenderElement.php
index 0283333..3dd48e8 100644
--- a/core/lib/Drupal/Core/Render/Element/RenderElement.php
+++ b/core/lib/Drupal/Core/Render/Element/RenderElement.php
@@ -128,9 +128,6 @@ public static function preRenderGroup($element) {
    */
   public static function processAjaxForm(&$element, FormStateInterface $form_state, &$complete_form) {
     $element = static::preRenderAjaxForm($element);
-    if (!empty($element['#ajax_processed'])) {
-      $form_state->setCached();
-    }
     return $element;
   }