sd: remove the !ZBC && blk_queue_is_zoned case in sd_read_block_characteristics

Now that host-aware devices are always treated as conventional this case
can't happen.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20231228075141.362560-2-hch@lst.de


Signed-off-by: Jens Axboe <axboe@kernel.dk>