[TASK] Remove dummy files from ext:version

Change-Id: I1f7b91c5734d63ebb66436790ef7d3cea6d038c7
Resolves: #47841
Related: #47756
Releases: 6.2
Reviewed-on: https://review.typo3.org/20430
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn