Breaking: #83161 - Remove TYPO3.LLL usages in TYPO3 core

See forge#83161

Description

After moving to the TYPO3.lang API for javascript, the TYPO3.LLL is not needed anymore.

Impact

All extensions which are using TYPO3.LLL for translation in javascript should be checked and updated accordingly.

Affected Installations

Any installation using extensions, which are using TYPO3.LLL.

Migration

Use TYPO3.lang['label'] from javascript. To make custom language labels available in javascript, add $this->pageRenderer->addInlineLanguageLabelFile('EXT:foo/Resources/Private/Language/locallang.xlf'); in your backend controller.

The class typo3/sysext/feedit/Classes/FrontendEditAssetLoader.php was removed, so if you used it in your code you have to remove the dependency.