[TASK] Speed up tests

Some tests use "accessibleMock" (= eval() code) where
it is completely unnecessary as not even a mock is needed.

Resolves: #89974
Releases: master
Change-Id: I6d44a251e670ec97787a45b68b40e8f4bef2946f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62547


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>