[!!!][TASK] Remove AbstractItemProvider->addItemsFromSpecial

The single field configuration "special" of TCA type
"select" was mainly used in core only, and was therefore
replaced by the dedicated TCA type "language" and
proper itemProcFunc's.

The corresponding method "addItemsFromSpecial" in
AbstractItemProvider is therefore now removed, making
the "special" TCA option obsolete.

Resolves: #96150
Related: #93837
Releases: main
Change-Id: I070773aa259e5f49131a77ddeddd27f03042b3f3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72387


Tested-by: core-ci <typo3@b13.com>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Benni Mack <benni@typo3.org>