[TASK] Remove unnecessary extbase test

The removed test was skipped for a long time, and its intended
guarding against the usage of objects in extbase requests does
not apply.

Resolves: #85610
Releases: master
Change-Id: Icf401ff50badba4d8d33405d86708ec7af157516
Reviewed-on: https://review.typo3.org/57649


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Jörg Bösche <typo3@joergboesche.de>
Tested-by: Jörg Bösche <typo3@joergboesche.de>
Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Tested-by: Mathias Brodala <mbrodala@pagemachine.de>