The 'affinity_hint_set' is not used any longer since commit 0d9f0a52c8b9 ("virtio_scsi: use virtio IRQ affinity").
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>