diff --git a/core/includes/form.inc b/core/includes/form.inc
index e21b84e..26d955c 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -85,18 +85,6 @@ function form_execute_handlers($type, &$form, FormStateInterface $form_state) {
 }
 
 /**
- * Builds and processes all elements in the structured form array.
- *
- * @deprecated in Drupal 8.x-dev, will be removed before Drupal 8.0.
- *   Use \Drupal::formBuilder()->doBuildForm().
- *
- * @see \Drupal\Core\Form\FormBuilderInterface::doBuildForm().
- */
-function form_builder($form_id, &$element, FormStateInterface $form_state) {
-  return \Drupal::formBuilder()->doBuildForm($form_id, $element, $form_state);
-}
-
-/**
  * Removes internal Form API elements and buttons from submitted form values.
  *
  * @deprecated in Drupal 8.x-dev, will be removed before Drupal 8.0.0.