Revert "[BUGFIX] Allow links in sys_news"

This reverts commit 2d40f748.

It has been discovered that the change enforced html-sanitizer
again and contradicted recent changes in issue #94786.

Resolves: #95158
Related: #67556
Releases: master
Change-Id: Icaead77b007553cef68bec3ad23e15fe853bbc05
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/71021


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>