[BUGFIX] StorageRepository must respect 'deleted' flag

The FAL's Storage Repository find* methods also load
deleted file storages at the moment.

Reproduce:
* Create some "File Storage" records on the root page and
delete some of them
* Open the File module, it will showdeleted File Storages

Resolves: #44630
Releases: 6.1, 6.0
Change-Id: I5c60f16261508978ddbe47aa26b52be5b05a82bc
Reviewed-on: https://review.typo3.org/17919
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn