ath9k: remove usage of deprecated noise value

Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/common.c

@@ -212,7 +212,6 @@ int ath9k_cmn_rx_skb_preprocess(struct ath_common *common,
 	rx_status->mactime = ath9k_hw_extend_tsf(ah, rx_stats->rs_tstamp);
 	rx_status->band = hw->conf.channel->band;
 	rx_status->freq = hw->conf.channel->center_freq;
-	rx_status->noise = common->ani.noise_floor;
 	rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi;
 	rx_status->antenna = rx_stats->rs_antenna;
 	rx_status->flag |= RX_FLAG_TSFT;