block: unexport blk_rq_count_integrity_sg

There are no external users of this.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20240913182854.2445457-9-kbusch@meta.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-integrity.c

@@ -53,7 +53,6 @@ int blk_rq_count_integrity_sg(struct request_queue *q, struct bio *bio)
 
 	return segments;
 }
-EXPORT_SYMBOL(blk_rq_count_integrity_sg);
 
 /**
  * blk_rq_map_integrity_sg - Map integrity metadata into a scatterlist