[TASK] Remove AbstractWizardController

The last business method of the abstract became
unused when the table wizard has been moved
to an element with #95036.

It is not needed anymore, and is removed,
thus the inheritance pattern can be avoided.

Resolves: #100631
Related: #95036
Releases: main
Change-Id: I9a8540521e771328ad2f57dbc0718021d08182f1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78679


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