blk-rq-qos: remove redundant finish_wait to rq_qos_wait.

It is no need do finish_wait twice after acquiring inflight.
Signed-off-by: Guo Xuenan <guoxuenan@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-rq-qos.c

@@ -273,8 +273,6 @@ void rq_qos_wait(struct rq_wait *rqw, void *private_data,
 		if (data.got_token)
 			break;
 		if (!has_sleeper && acquire_inflight_cb(rqw, private_data)) {
-			finish_wait(&rqw->wait, &data.wq);
-
 			/*
 			 * We raced with wbt_wake_function() getting a token,
 			 * which means we now have two. Put our local token