[TASK] Move modAccess and language include in EXT:filelist

* Remove deprecated require_once call

Resolves: #56827
Releases: 6.2
Change-Id: Iae4b666f7bb3ff81194ea6a6ff51b84fd9a1112c
Reviewed-on: https://review.typo3.org/28304
Reviewed-by: Benjamin Mack
Tested-by: Benjamin Mack
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring