block: remove the bioset_integrity_free export

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/bio-integrity.c

@@ -460,7 +460,6 @@ void bioset_integrity_free(struct bio_set *bs)
 	mempool_exit(&bs->bio_integrity_pool);
 	mempool_exit(&bs->bvec_integrity_pool);
 }
-EXPORT_SYMBOL(bioset_integrity_free);
 
 void __init bio_integrity_init(void)
 {