Desactivar avisos nuevos usuarios

<?php

function wpcode_send_new_user_notifications( $user_id, $notify = 'user' ) {

    if ( empty( $notify ) || 'admin' === $notify ) {

        return;

    } elseif ( 'both' === $notify ) {

        // Send new users the email but not the admin.

        $notify = 'user';

    }

    wp_send_new_user_notifications( $user_id, $notify );

}

add_action(

    'init',

    function () {

        // Disable default email notifications.

        remove_action( 'register_new_user', 'wp_send_new_user_notifications' );

        remove_action( 'edit_user_created_user', 'wp_send_new_user_notifications' );

        // Replace with custom function that only sends to user.

        add_action( 'register_new_user', 'wpcode_send_new_user_notifications' );

        add_action( 'edit_user_created_user', 'wpcode_send_new_user_notifications', 10, 2 );

    }

);