RemoveEntryListener
error = fIndex->GetVolume()->RemoveEntryListener(this, fEntry);
error = fIndex->GetVolume()->RemoveEntryListener(this, fEntry);
fVolume->RemoveEntryListener(this, NULL);
error = fIndex->GetVolume()->RemoveEntryListener(this,
error = fIndex->GetVolume()->RemoveEntryListener(this, fEntry);
status_t RemoveEntryListener(EntryListener *listener, Entry *entry);