iwlwifi: remove unused HT configuration entry tx_chan_width

The tx_chan_width entry is never used, supported_chan_width is used instead.
Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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

@@ -2423,7 +2423,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 
 	memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
 
-	iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
 	iwl_conf->ht_protection =
 		bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
 	iwl_conf->non_GF_STA_present =

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

@@ -515,7 +515,6 @@ struct iwl_ht_info {
 	struct ieee80211_mcs_info mcs;
 	/* BSS related data */
 	u8 extension_chan_offset;
-	u8 tx_chan_width;
 	u8 ht_protection;
 	u8 non_GF_STA_present;
 };