iwlwifi: remove scan_rx_antennas

This is not (no longer?) used by any device
so just remove it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-scan.c

@@ -793,9 +793,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 
 	band = priv->scan_band;
 
-	if (cfg(priv)->scan_rx_antennas[band])
-		rx_ant = cfg(priv)->scan_rx_antennas[band];
-
 	if (band == IEEE80211_BAND_2GHZ &&
 	    cfg(priv)->bt_params &&
 	    cfg(priv)->bt_params->advanced_bt_coexist) {

drivers/net/wireless/iwlwifi/iwl-shared.h

@@ -297,7 +297,6 @@ struct iwl_ht_params {
  * @need_temp_offset_calib: need to perform temperature offset calibration
  * @no_xtal_calib: some devices do not need crystal calibration data,
  *	don't send it to those
- * @scan_rx_antennas: available antenna for scan operation
  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
  * @adv_pm: advance power management
  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
@@ -330,7 +329,6 @@ struct iwl_cfg {
 	const struct iwl_bt_params *bt_params;
 	const bool need_temp_offset_calib; /* if used set to true */
 	const bool no_xtal_calib;
-	u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 	enum iwl_led_mode led_mode;
 	const bool adv_pm;
 	const bool rx_with_siso_diversity;