Revert "libata: Implement NCQ autosense"

This reverts commit 42b966fbf35da9c87f08d98f9b8978edf9e717cf.

As implemented, ACS-4 sense reporting for ATA devices bypasses error
diagnosis and handling in libata degrading EH behavior significantly.
Revert the related changes for now.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org #v4.1+

diff --cc drivers/ata/libata-eh.c
Simple merge

diff --cc drivers/ata/libata-scsi.c
Simple merge

diff --cc drivers/ata/libata.h
Simple merge

diff --cc include/linux/ata.h
Simple merge