Revert "[TASK] Declare core as replacement for t3g/svg-sanitizer"

This reverts commit c35316f6.

Not defining replaced version of `t3g/svg-sanitizer` leads to
problems with `roave/security-advisories`. Overall it seems to
be better, to completely revert previous change.

Resolves: #94782
Reverts: #94719
Releases: master, 11.3, 10.4, 9.5
Change-Id: I43c2ea986ffec72bc0c8eb740a84daad33e9257f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70433


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>