[!!!][TASK] Remove deprecated FAL functionality

The following FAL related core methods have been removed:
* Resource\File-> _getMetaData
* Resource\FileRepository->searchByName
* Resource\Index\FileIndexRepository->findBySearchWordInMetaData
* Resource\ResourceFactory->getInstance
* Resource\ResourceStorage->checkFileAndFolderNameFilters

Resolves: #91541
Related: #91473
Releases: master
Change-Id: Iface7353c1db7ce5c3327a63e9ae360dadc86b76
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64612


Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>