[TASK] remove old ClearCache hook

Classes/Hooks/ClearCacheHook.php

-<?php
-
-/***************************************************************
- *  Copyright notice
- *  (c) sgalinski Internet Services (https://www.sgalinski.de)
- *  All rights reserved
- *  This script is part of the TYPO3 project. The TYPO3 project is
- *  free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 3 of the License, or
- *  (at your option) any later version.
- *  The GNU General Public License can be found at
- *  http://www.gnu.org/copyleft/gpl.html.
- *  This script is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *  This copyright notice MUST APPEAR in all copies of the script!
- ***************************************************************/
-
-namespace SGalinski\SgYoutube\Hooks;
-
-use TYPO3\CMS\Core\Registry;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
-
-/**
- * System Clear Hook
- */
-class ClearCacheHook {
-	/**
-	 * Remove all YouTube cache entries from the registry
-	 *
-	 * @return void
-	 */
-	public function clearCachePostProc(array $params) {
-		if (isset($params['cacheCmd']) && $params['cacheCmd'] === 'pages') {
-			$registry = GeneralUtility::makeInstance(Registry::class);
-			$registry->removeAllByNamespace('sg_youtube');
-		}
-	}
-}

ext_localconf.php

@@ -53,5 +53,3 @@ $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['sgyoutube_
 // Hooks
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/class.tx_cms_layout.php']['tt_content_drawItem']['sg_youtube']
 	= \SGalinski\SgYoutube\Hooks\PageLayoutView\PluginRenderer::class;
-$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearCachePostProc']['sg_youtube_clearcache'] =
-	\SGalinski\SgYoutube\Hooks\ClearCacheHook::class . '->clearCachePostProc';