When deleting remote repository cached artifacts are not deleted in a specific use case

Modifying a remote repository after it has cached items to no longer cache them and deleting it leads to leaked space.

To reproduce:

1. Create a remote repository with the default settings
2. Download various items so that they are cached
3. Edit the remote repository and un-check "Store Artifacts locally"
4. Delete the repository

Observer in the storage page that the remote repository cache still lingers. In some versions the package type will appear as BROKEN, in others as N/A.