ath9k_hw: remove pCap->tx_triglevel_max

It has the same purpose (and value) as ah->config.max_txtrig_level

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index f916f08..5943bdc 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1980,7 +1980,7 @@
 		if (ieee80211_is_data(hdr->frame_control) &&
 		    (ts->ts_flags & (ATH9K_TX_DATA_UNDERRUN |
 		                     ATH9K_TX_DELIM_UNDERRUN)) &&
-		    ah->tx_trig_level >= sc->sc_ah->caps.tx_triglevel_max)
+		    ah->tx_trig_level >= sc->sc_ah->config.max_txtrig_level)
 			tx_info->status.rates[tx_rateindex].count =
 				hw->max_rate_tries;
 	}