[TASK] DatabaseRecordList: Drop internal property tablesCollapsed

The information about collapsed tables is only needed in the getTable
method. So the information could be collected there and the property
tableCollapsed has been dropped.

Releases: master
Resolves: #92077
Change-Id: If6c6bc6d6b7108975a2b1b4e0fdfb01fe2e06fbe
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65437


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Daniel Haupt <mail@danielhaupt.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>