iwlwifi: remove never-changing priv->rates_mask variable

It's always just IWL_RATES_MASK.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

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

@@ -2103,8 +2103,8 @@ static void iwl_alive_start(struct iwl_priv *priv)
 
 	ieee80211_wake_queues(priv->hw);
 
-	priv->active_rate = priv->rates_mask;
-	priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+	priv->active_rate = IWL_RATES_MASK;
+	priv->active_rate_basic = IWL_RATES_MASK & IWL_BASIC_RATES_MASK;
 
 	/* Configure Tx antenna selection based on H/W config */
 	if (priv->cfg->ops->hcmd->set_tx_ant)
@@ -3392,7 +3392,6 @@ static int iwl_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_active = 0;
 	priv->qos_data.qos_cap.val = 0;
 
-	priv->rates_mask = IWL_RATES_MASK;
 	/* Set the tx_power_user_lmt to the lowest power level
 	 * this value will get overwritten by channel max power avg
 	 * from eeprom */

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

@@ -1217,8 +1217,6 @@ struct iwl_priv {
 #endif
 
 	/* context information */
-	u16 rates_mask;
-
 	u8 bssid[ETH_ALEN];
 	u16 rts_threshold;
 	u8 mac_addr[ETH_ALEN];

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -2508,8 +2508,8 @@ static void iwl3945_alive_start(struct iwl_priv *priv)
 
 	ieee80211_wake_queues(priv->hw);
 
-	priv->active_rate = priv->rates_mask;
-	priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+	priv->active_rate = IWL_RATES_MASK;
+	priv->active_rate_basic = IWL_RATES_MASK & IWL_BASIC_RATES_MASK;
 
 	iwl_power_update_mode(priv, true);
 
@@ -3855,7 +3855,6 @@ static int iwl3945_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_active = 0;
 	priv->qos_data.qos_cap.val = 0;
 
-	priv->rates_mask = IWL_RATES_MASK;
 	priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
 
 	if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {