remove long broken SCSI to NVMe translations

[Martin K. Petersen]

Keith,

>> TEST UNIT READY wa broken for a year and a half, and FORMAT UNIT and
>> WRITE BUFFER for two years.  Instead of fixing them up remove them - no
>> one should be sending SCSI commands to non-scsi devices anyway.
>
> This is a step in the right direction, but I don't think it goes far
> enough. Can we remove the whole thing now?

I agree. Let's just get rid of the whole thing.

-- 
Martin K. Petersen	Oracle Linux Engineering