chimera: remove FileSystemProvider#getInodeChecksum

use FileSystemProvider#getInodeChecksums with filtering in the code

Acked-by: Gerd Behrmann
Target: master
Require-book: no
Require-notes: no
chimera-provider: fix regressions introduced by API change

Acked-by: Paul Millar
Target: master
Require-book: no
Require-notes: no