blk-mq: kill unused blk_mq_create_mq_map()

	return 0;

}

static int blk_mq_create_mq_map(struct blk_mq_tag_set *set,

		const struct cpumask *affinity_mask)

{

	int queue = -1, cpu = 0;

	set->mq_map = kzalloc_node(sizeof(*set->mq_map) * nr_cpu_ids,

			GFP_KERNEL, set->numa_node);

	if (!set->mq_map)

		return -ENOMEM;

	if (!affinity_mask)

		return 0;	/* map all cpus to queue 0 */

	/* If cpus are offline, map them to first hctx */

	for_each_online_cpu(cpu) {

		if (cpumask_test_cpu(cpu, affinity_mask))

			queue++;

		if (queue >= 0)

			set->mq_map[cpu] = queue;

	}

	return 0;

}

/*

 * Alloc a tag set to be associated with one or more request queues.

 * May fail with EINVAL for various error conditions. May adjust the