[BUGFIX] Delete modified record in WS just deletes WS version

If you edit a record in a workspace and then you try to
delete the record, the record it not deleted but the
version (workspace-change record) is.

Resolves: #52530
Releases: 6.2, 6.1, 6.0
Change-Id: I6a77f9a398276af98c41d841053641f3e07b2e33
Reviewed-on: https://review.typo3.org/24568
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring