block: remove unused BVEC_ITER_ALL_INIT

This macro no longer has any users, so remove it.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://patch.msgid.link/20260403184852.2140919-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: calebsander

include/linux/bvec.h

@@ -203,15 +203,6 @@ static inline void bvec_iter_advance_single(const struct bio_vec *bv,
 		((bvl = mp_bvec_iter_bvec((bio_vec), (iter))), 1);	\
 	     bvec_iter_advance_single((bio_vec), &(iter), (bvl).bv_len))
 
-/* for iterating one bio from start to end */
-#define BVEC_ITER_ALL_INIT (struct bvec_iter)				\
-{									\
-	.bi_sector	= 0,						\
-	.bi_size	= UINT_MAX,					\
-	.bi_idx		= 0,						\
-	.bi_bvec_done	= 0,						\
-}
-
 static inline struct bio_vec *bvec_init_iter_all(struct bvec_iter_all *iter_all)
 {
 	iter_all->done = 0;