[TASK] Remove unused line from ColorType class

Resolves: #103816
Releases: main
Change-Id: I407cf635b5e1030c943d45a99a51a0210b840a08
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/84189


Reviewed-by: Chris Müller <typo3@brotkrueml.dev>
Reviewed-by: Torben Hansen <derhansen@gmail.com>
Reviewed-by: Simon Schaufelberger <simonschaufi+typo3@gmail.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Torben Hansen <derhansen@gmail.com>
Tested-by: Simon Schaufelberger <simonschaufi+typo3@gmail.com>
Tested-by: Chris Müller <typo3@brotkrueml.dev>
Tested-by: Stefan Bürk <stefan@buerk.tech>