[TASK] Remove obsolete textmedia content element update wizard

With the reintroduction of text, textpic and image this wizard becomes
obsolete and can lead to accidential migrations. To avoid unwanted and
unnessesary migrations we are removing this wizard without replacement.

Resolves: #80625
Releases: master
Change-Id: Iaee3692cad4a0d90880dd5b0f2251a470c8b5893
Reviewed-on: https://review.typo3.org/52310


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>