Remove product image in magento2

<?php

use Magento\Framework\App\Bootstrap;
use Magento\Sales\Model\Order;
use Magento\Catalog\Model\Product as ModelProduct;

require __DIR__ . '/app/bootstrap.php';
$bootstrap = Bootstrap::create(BP, $_SERVER);
$obj = $bootstrap->getObjectManager();
$obj->get('\Magento\Framework\App\State')->setAreaCode('frontend'); // for remove Area code is not set error
$storeManager = $obj->get('\Magento\Store\Model\StoreManagerInterface');
$baseUrl = $storeManager->getStore()->getBaseUrl();
$string = 'CC103,CC107,CC118,CC119,CC120,CC121,CC126,CC129,CC130,CC131,CC132,CC122_9IN1,CC124,';
$productArray = explode(",", $string);

//Instance of object manager
$objectManager = \Magento\Framework\App\ObjectManager::getInstance(); 
foreach($productArray as $sku)
{    
$products = $objectManager->create('Magento\Catalog\Model\Product')->loadByAttribute('sku', $sku);
$product = $objectManager->create('Magento\Catalog\Model\Product')->load($products->getId());
$productRepository = $objectManager->create('Magento\Catalog\Api\ProductRepositoryInterface');
$existingMediaGalleryEntries = $product->getMediaGalleryEntries();
foreach ($existingMediaGalleryEntries as $key => $entry)
{
    unset($existingMediaGalleryEntries[$key]);
}
$product->setMediaGalleryEntries($existingMediaGalleryEntries);
$productRepository->save($product);

echo "Product Image has been removed for ".$product->getSku().'=='.$product->getId()."</br>";

}
echo "Yahooooo";

Note : If you have got any error then first you have to check in the Product "URL KEY" if this column is blank, please fill the url key And run the file.