iwlwifi: always support idle mode for agn devices

For agn devices, always support idle mode which help power
consumption in idle unassociated state.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/iwl-1000.c

@@ -270,7 +270,6 @@ static struct iwl_base_params iwl1000_base_params = {
 	.ucode_tracing = true,
 	.sensitivity_calib_by_driver = true,
 	.chain_noise_calib_by_driver = true,
-	.supports_idle = true,
 };
 static struct iwl_ht_params iwl1000_ht_params = {
 	.ht_greenfield_support = true,

drivers/net/wireless/iwlwifi/iwl-2000.c

@@ -368,7 +368,6 @@ static struct iwl_base_params iwl2000_base_params = {
 	.shadow_ram_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
@@ -393,7 +392,6 @@ static struct iwl_base_params iwl2030_base_params = {
 	.shadow_ram_support = true,
 	.led_compensation = 57,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,

drivers/net/wireless/iwlwifi/iwl-6000.c

@@ -479,7 +479,6 @@ static struct iwl_base_params iwl6000_base_params = {
 	.shadow_ram_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
@@ -503,7 +502,6 @@ static struct iwl_base_params iwl6050_base_params = {
 	.shadow_ram_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
@@ -526,7 +524,6 @@ static struct iwl_base_params iwl6000_g2_base_params = {
 	.shadow_ram_support = true,
 	.led_compensation = 57,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,

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

@@ -305,7 +305,6 @@ struct iwl_base_params {
 	u16 led_compensation;
 	const bool broken_powersave;
 	int chain_noise_num_beacons;
-	const bool supports_idle;
 	bool adv_thermal_throttle;
 	bool support_ct_kill_exit;
 	const bool support_wimax_coexist;

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

@@ -356,8 +356,7 @@ static void iwl_power_build_cmd(struct iwl_priv *priv,
 
 	if (priv->cfg->base_params->broken_powersave)
 		iwl_power_sleep_cam_cmd(priv, cmd);
-	else if (priv->cfg->base_params->supports_idle &&
-		 priv->hw->conf.flags & IEEE80211_CONF_IDLE)
+	else if (priv->hw->conf.flags & IEEE80211_CONF_IDLE)
 		iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20);
 	else if (priv->cfg->ops->lib->tt_ops.lower_power_detection &&
 		 priv->cfg->ops->lib->tt_ops.tt_power_mode &&