[!!!][TASK] Remove old class aliases from core extension

Resolves: #87228
Releases: master
Change-Id: I400fa0bc7882b0ee366c6f923c8e21c30b30a5f6
Reviewed-on: https://review.typo3.org/59222


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>