[TASK] Remove unused variable

Resolves: #88334
Releases: master, 9.5
Change-Id: I380c0aa3dd63ab6d1a8587138e0ff33df6941ca4
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/60731


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Jonas Eberle <flightvision@googlemail.com>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Jonas Eberle <flightvision@googlemail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Tomas Norre Mikkelsen <tomasnorre@gmail.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>