[TASK] Remove unused typeicon "script" definition

The "script" typeicon definition is removed since
no such CType exists.

Resolves: #104830
Releases: main
Change-Id: I6d733a3d87a916e616407bd9f7681ebf8bd03184
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85897


Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Benni Mack <benni@typo3.org>