nvme: remove the unused NVME_NS_* enum

These values are unused now that the lightnvm support is gone.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>

drivers/nvme/host/nvme.h

@@ -47,11 +47,6 @@ extern struct workqueue_struct *nvme_wq;
 extern struct workqueue_struct *nvme_reset_wq;
 extern struct workqueue_struct *nvme_delete_wq;
 
-enum {
-	NVME_NS_LBA		= 0,
-	NVME_NS_LIGHTNVM	= 1,
-};
-
 /*
  * List of workarounds for devices that required behavior not specified in
  * the standard.