Revert "[BUGFIX] Abort commit if commit message does not fulfill all requirements"

This reverts commit b2bb5994.

Reason for revert:
The commit-msg hook now tends to throw away the message.
Fully loosing a commit message is worse than a funny
exit code. We revert for now and eventually come up
with a different solution later.

Change-Id: Ifae1f2658a95c09591fdc5a857084064090a5f82
Reverts: #98094
Resolves: #98094
Releases: main, 11.5, 10.4
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/75454


Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Simon Schaufelberger <simonschaufi+typo3@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Simon Schaufelberger <simonschaufi+typo3@gmail.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>