p1: Delete Image and binary data Linux server (22.1)

[saloynton]

Scenario below

All these should behave the same in both clients. 
 * Delete Image and binary data
    - first note the Image ID and get the pixels ID, the Thumbnail ID and !OriginalFile ID(s) 
    - E.g. psql: select * from pixels where pixels.image=<imageId> 
    - check that these files exist under omero.data.dir (Pixels, Thumbnails, Files)
    - delete the Image
    - check that the files noted above have been deleted.

 * Delete Image and binary data
    - first note the Image ID and get the pixels ID, the Thumbnail ID and !OriginalFile ID(s)
    - E.g. psql: select * from pixels where pixels.image=<imageId>
    - Check that these files exist under omero.data.dir (Pixels, Thumbnails, Files)
    - Delete the Image.
    - Check that the files noted above have been deleted.

 * Try to delete any remaining files using cleanse.
    - bin/omero admin cleanse --dry-run
    - note whether undeleted files are marked for deletion.
    - bin/omero admin cleanse ( NOTE These last two points are optional under Linux)
    - note whether undeleted files have now been deleted.