Controller/Adminhtml/Ajax/Fbdeleteasset.php

<?php
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates. All Rights Reserved
 */

namespace Facebook\BusinessExtension\Controller\Adminhtml\Ajax;

class Fbdeleteasset extends AbstractAjax
{
    // phpcs:disable Generic.CodeAnalysis.UselessOverridingMethod
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \Magento\Framework\Controller\Result\JsonFactory $resultJsonFactory,
        \Facebook\BusinessExtension\Helper\FBEHelper $fbeHelper
    ) {
        parent::__construct($context, $resultJsonFactory, $fbeHelper);
    }

    public function executeForJson()
    {
        return $this->_fbeHelper->deleteConfigKeys();
    }
}