Revert "mac80211: Add TXQ scheduling API"

This reverts commit e937b8da5a591f141fe41aa48a2e898df9888c95.

Turns out that a new driver (mt76) is coming in through
Kalle's tree, and will conflict with this. It also has some
conflicting requirements, so we'll revisit this later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 6c6cad9..595c662 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -226,13 +226,9 @@ ieee80211_agg_start_txq(struct sta_info *sta, int tid, bool enable)
 		clear_bit(IEEE80211_TXQ_AMPDU, &txqi->flags);
 
 	clear_bit(IEEE80211_TXQ_STOP, &txqi->flags);
-
-	if (!ieee80211_schedule_txq(&sta->sdata->local->hw, txq))
-		return;
-
 	local_bh_disable();
 	rcu_read_lock();
-	drv_wake_tx_queue(sta->sdata->local);
+	drv_wake_tx_queue(sta->sdata->local, txqi);
 	rcu_read_unlock();
 	local_bh_enable();
 }