Docs: Add missing duplicate hook references in `wp-admin/includes/ajax-actions.php`.

Props keesiemeijer.
See #39371.
Built from https://develop.svn.wordpress.org/trunk@39668


git-svn-id: http://core.svn.wordpress.org/trunk@39608 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/ajax-actions.php

@@ -1966,9 +1966,11 @@ function wp_ajax_delete_inactive_widgets() {
 	}
 
 	unset( $_POST['removeinactivewidgets'], $_POST['action'] );
-
+	/** This action is documented in wp-admin/includes/ajax-actions.php */
 	do_action( 'load-widgets.php' );
+	/** This action is documented in wp-admin/includes/ajax-actions.php */
 	do_action( 'widgets.php' );
+	/** This action is documented in wp-admin/widgets.php */
 	do_action( 'sidebar_admin_setup' );
 
 	$sidebars_widgets = wp_get_sidebars_widgets();

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-39667';
+$wp_version = '4.8-alpha-39668';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.