[TASK] Remove orphaned language keys in EXT:info

Resolves: #104779
Releases: main
Change-Id: If64ade32e87152dc0abe6a5b31ec2190e7dfeb46
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85825


Tested-by: Chris Müller <typo3@brotkrueml.dev>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Chris Müller <typo3@brotkrueml.dev>
Tested-by: Jasmina Ließmann <minapokhalo+typo3@gmail.com>
Reviewed-by: Jasmina Ließmann <minapokhalo+typo3@gmail.com>