[CLEANUP] remove deprecated repository constructor

Resolves: #51142
Releases: 6.2
Change-Id: Iff5850940fa6e92ccd890564e2a90d11e9cf5e8d
Reviewed-on: https://review.typo3.org/23151
Reviewed-by: Oliver Klee
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind
[TASK] Remove dispensable headlines in EXT: beuser

The amount of headline in backend user module can be reduced.
There is one headline for one view in Backend User Management.

Change-Id: If6b58b0ac2a09ecc9020714dba01448b6c159cb5
Resolves: #51147
Releases: 6.2
Reviewed-on: https://review.typo3.org/23163
Reviewed-by: Philipp Gampe
Tested-by: Philipp Gampe
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind