win2ntfs.c was the standalone harness that validated the WIM->NTFS apply;
that logic now lives (with real per-file SIDs) in win_disk.c. AppSandboxSHM_producer.c
was the ivshmem bring-up bandwidth POC whose host-side reader (shm-test) is gone;
the production data path is asb_transport over the AppSandboxSHM driver. Neither
file was compiled by any target or included anywhere.