[!!!][TASK] Drop additional palette handling

Change-Id: I33a5173515ebf04e19f31838cff84dd5561bc3c3
Resolves: #67737
Releases: master
Reviewed-on: http://review.typo3.org/40599


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Alexander Opitz <opitz.alexander@googlemail.com>
Tested-by: Alexander Opitz <opitz.alexander@googlemail.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>