block: Remove unused blk_mq_sched_free_hctx_data()

#include "blk-mq-tag.h"

#include "blk-wbt.h"

void blk_mq_sched_free_hctx_data(struct request_queue *q,

				 void (*exit)(struct blk_mq_hw_ctx *))

{

	struct blk_mq_hw_ctx *hctx;

	int i;

	queue_for_each_hw_ctx(q, hctx, i) {

		if (exit && hctx->sched_data)

			exit(hctx);

		kfree(hctx->sched_data);

		hctx->sched_data = NULL;

	}

}

EXPORT_SYMBOL_GPL(blk_mq_sched_free_hctx_data);

void blk_mq_sched_assign_ioc(struct request *rq)

{

	struct request_queue *q = rq->q;

#include "blk-mq.h"

#include "blk-mq-tag.h"

void blk_mq_sched_free_hctx_data(struct request_queue *q,

				 void (*exit)(struct blk_mq_hw_ctx *));

void blk_mq_sched_assign_ioc(struct request *rq);

void blk_mq_sched_request_inserted(struct request *rq);