Login and Registration: Remove redundant login URL at the end of new user notification.

This became unnecessary (and confusing) after the plaintext password was removed from the email, and the URL to set a new password was added directly above in WordPress 4.3.

Follow-up to [2872], [8058], [10931], [33023].

Props clayray, manhphucofficial, pratiklondhe, johnbillion, SergeyBiryukov.
Fixes #64316.

git-svn-id: https://develop.svn.wordpress.org/trunk@61321 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-includes/pluggable.php

@@ -2379,9 +2379,7 @@ function wp_new_user_notification( $user_id, $deprecated = null, $notify = '' )
 		 *
 		 * @see https://core.trac.wordpress.org/tickets/42957
 		 */
-		$message .= network_site_url( 'wp-login.php?login=' . rawurlencode( $user->user_login ) . "&key=$key&action=rp", 'login' ) . "\r\n\r\n";
-
-		$message .= wp_login_url() . "\r\n";
+		$message .= network_site_url( 'wp-login.php?login=' . rawurlencode( $user->user_login ) . "&key=$key&action=rp", 'login' ) . "\r\n";
 
 		$wp_new_user_notification_email = array(
 			'to'      => $user->user_email,