WordPress at a glance
function is not described

wp_delete_signup_on_user_delete() WP 5.5.0

Deletes am associated signup entry when a user is deleted from the database.

No Hooks.

Return

null. Null. Nothing.

Usage

wp_delete_signup_on_user_delete( $id, $reassign, $user );
$id(int) (required)
ID of the user to delete.
$reassign(int|null) (required)
ID of the user to reassign posts and links to.
$user(WP_User) (required)
User object.

Changelog

Since 5.5.0 Introduced.

Code of wp_delete_signup_on_user_delete() WP 5.7.1

<?php
function wp_delete_signup_on_user_delete( $id, $reassign, $user ) {
	global $wpdb;

	$wpdb->delete( $wpdb->signups, array( 'user_login' => $user->user_login ) );
}