diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index 27494e7..cabbb5f 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -1152,25 +1152,6 @@ function module_implements($hook) {
 }
 
 /**
- * Invokes a hook in a particular module.
- *
- * All arguments are passed by value. Use \Drupal::moduleHandler()->alter() if
- * you need to pass arguments by reference.
- *
- * @deprecated in Drupal 8.x-dev, will be removed before Drupal 8.0. Use
- *   \Drupal::moduleHandler()->invoke($module, $hook, $args = array()).
- *
- * @see \Drupal\Core\Extension\ModuleHandler::alter()
- * @see \Drupal\Core\Extension\ModuleHandler::invoke()
- */
-function module_invoke($module, $hook) {
-  $args = func_get_args();
-  // Remove $module and $hook from the arguments.
-  unset($args[0], $args[1]);
-  return \Drupal::moduleHandler()->invoke($module, $hook, $args);
-}
-
-/**
  * Returns the test prefix if this is an internal request from SimpleTest.
  *
  * @param string $new_prefix