iwlagn: all _agn devices support power save mode

Remove broken_power_save checking

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 60bfde7..23b89c2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2828,9 +2828,8 @@
 
 	hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
 
-	if (!priv->cfg->base_params->broken_powersave)
-		hw->flags |= IEEE80211_HW_SUPPORTS_PS |
-			     IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
+	hw->flags |= IEEE80211_HW_SUPPORTS_PS |
+		     IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 
 	if (priv->cfg->sku & IWL_SKU_N)
 		hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |