Disable deprecation log

ext_localconf.php

@@ -24,3 +24,5 @@ if (!defined('TYPO3_MODE')) {
             \TYPO3\Election\Controller\FeElectionController::getActionsForPluginConfiguration(),
     )
 );
+
+$GLOBALS['TYPO3_CONF_VARS']['LOG']['TYPO3']['CMS']['deprecations']['writerConfiguration'][\TYPO3\CMS\Core\Log\LogLevel::NOTICE] = [];
\ No newline at end of file