[TASK] Remove null coalesce operator on always true value in ContentObjectRenderer

Resolves: #99140
Releases: main
Change-Id: Icfe0fbc0c2b10b5383127bd27206237dae4f2965
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76709


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>