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

See #37699.


git-svn-id: https://develop.svn.wordpress.org/trunk@38304 602fd350-edb4-49c9-b593-d223f7449a82

src/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'] ) ) {