[!!!][TASK] Remove deprecated md5.js

The library md5.js has been removed in favor of the
TYPO3/CMS/Backend/Hashing/Md5 module.

Resolves: #91485
Releases: master
Change-Id: I3e6e3419ddf84a5790421ba1117d78219a880b96
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64446


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Daniel Haupt <mail@danielhaupt.de>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>