iwlwifi: remove unused or twice defined members in iwl_priv

This patch removes user_txpower_limit and max_channel_txpower_limit
and use tx_power_user_lmt and tx_power_channel_lmt instead
call_post_assoc_from_beacon is not used

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index c8afcd1..cebfb8f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -520,7 +520,7 @@
 					     flags & EEPROM_CHANNEL_RADAR))
 				       ? "" : "not ");
 
-			/* Set the user_txpower_limit to the highest power
+			/* Set the tx_power_user_lmt to the highest power
 			 * supported by any channel */
 			if (eeprom_ch_info[ch].max_power_avg >
 						priv->tx_power_user_lmt)