rt2x00: remove last_nostatus_check

We do not any longer check txstatus timeout from tasklet, so do not need
this optimization.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ralink/rt2x00/rt2800lib.c

@@ -1164,15 +1164,6 @@ bool rt2800_txstatus_timeout(struct rt2x00_dev *rt2x00dev)
 	struct data_queue *queue;
 	struct queue_entry *entry;
 
-	if (!test_bit(DEVICE_STATE_FLUSHING, &rt2x00dev->flags)) {
-		unsigned long tout = msecs_to_jiffies(1000);
-
-		if (time_before(jiffies, rt2x00dev->last_nostatus_check + tout))
-			return false;
-	}
-
-	rt2x00dev->last_nostatus_check = jiffies;
-
 	tx_queue_for_each(rt2x00dev, queue) {
 		entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
 		if (rt2800_entry_txstatus_timeout(rt2x00dev, entry))

drivers/net/wireless/ralink/rt2x00/rt2x00.h

@@ -980,8 +980,6 @@ struct rt2x00_dev {
 	 */
 	DECLARE_KFIFO_PTR(txstatus_fifo, u32);
 
-	unsigned long last_nostatus_check;
-
 	/*
 	 * Timer to ensure tx status reports are read (rt2800usb).
 	 */

drivers/net/wireless/ralink/rt2x00/rt2x00queue.c

@@ -1042,7 +1042,6 @@ void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev)
 	 */
 	tx_queue_for_each(rt2x00dev, queue)
 		rt2x00queue_start_queue(queue);
-	rt2x00dev->last_nostatus_check = jiffies;
 
 	rt2x00queue_start_queue(rt2x00dev->rx);
 }