target: remove the task_sectors field in struct se_task

Remove the task_sectors field that isn't used anywhere.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

drivers/target/target_core_transport.c

@@ -3723,8 +3723,6 @@ transport_allocate_data_tasks(struct se_cmd *cmd,
 	task->task_sg = cmd_sg;
 	task->task_sg_nents = sgl_nents;
 
-	task->task_sectors = sectors;
-
 	spin_lock_irqsave(&cmd->t_state_lock, flags);
 	list_add_tail(&task->t_list, &cmd->t_task_list);
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);

include/target/target_core_base.h

@@ -486,7 +486,6 @@ struct se_queue_obj {
 };
 
 struct se_task {
-	u32			task_sectors;
 	struct se_cmd		*task_se_cmd;
 	struct scatterlist	*task_sg;
 	u32			task_sg_nents;