[TASK] Add deprecation removal main ReST file

Kickstart the deprecation removal .rst file
with boilerplate entries.

Resolves: #100963
Releases: main
Change-Id: I81b51f3bf718bb19985972a47a0d133eee0ad7f3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79201


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