blk-mq: remove unneeded needs_restart check

If code reaches here, needs_restart must be true. Remove this unneeded
needs_restart check. No functional change intended.
Signed-off-by: NMiaohe Lin <linmiaohe@huawei.com>
Link: https://lore.kernel.org/r/20220905101950.4606-1-linmiaohe@huawei.comSigned-off-by: NJens Axboe <axboe@kernel.dk>

block/blk-mq.c

@@ -1991,7 +1991,7 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list,
 		if (!needs_restart ||
 		    (no_tag && list_empty_careful(&hctx->dispatch_wait.entry)))
 			blk_mq_run_hw_queue(hctx, true);
-		else if (needs_restart && needs_resource)
+		else if (needs_resource)
 			blk_mq_delay_run_hw_queue(hctx, BLK_MQ_RESOURCE_DELAY);
 
 		blk_mq_update_dispatch_busy(hctx, true);