Login: `retrieve_password()` does not need to import 2 globals that it does not use.

See #37699.

Built from https://develop.svn.wordpress.org/trunk@38304


git-svn-id: http://core.svn.wordpress.org/trunk@38245 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38303';
+$wp_version = '4.7-alpha-38304';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

wp-login.php

@@ -285,14 +285,9 @@ function wp_login_viewport_meta() {
 /**
  * Handles sending password retrieval email to user.
  *
- * @global wpdb         $wpdb      WordPress database abstraction object.
- * @global PasswordHash $wp_hasher Portable PHP password hashing framework.
- *
  * @return bool|WP_Error True: when finish. WP_Error on error
  */
 function retrieve_password() {
-	global $wpdb, $wp_hasher;
-
 	$errors = new WP_Error();
 
 	if ( empty( $_POST['user_login'] ) ) {