<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
/** @var \Magento\Framework\ObjectManagerInterface $objectManager */
$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();

/** @var \Magento\Framework\Registry $registry */
$registry = $objectManager->get(\Magento\Framework\Registry::class);

$registry->unregister('isSecureArea');
$registry->register('isSecureArea', true);

/** @var \Magento\Catalog\Api\ProductRepositoryInterface $productRepository */
$productRepository = $objectManager->get(\Magento\Catalog\Api\ProductRepositoryInterface::class);

try {
    $product = $productRepository->get('simple', false, null, true);
    $productRepository->delete($product);
} catch (\Magento\Framework\Exception\NoSuchEntityException $exception) {
    //Product already removed
}

$registry->unregister('isSecureArea');
$registry->register('isSecureArea', false);