osdc/Filer: assert(0) on stat error
osdc/Filer: assert(0) on stat error

Remove broken error handling code and replace with an assert(0) and a
TODO.

Signed-off-by: Colin McCabe <7b35906f1d014e74a9dc8c913eb229119df647aa@dreamhost.com>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph