iwlagn: remove un-necessary "_agn"

After driver split, extra _agn in priv structure is no needed, remove it.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 0505b1a..dd6937e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -565,10 +565,10 @@
 		goto out_settings;
 	}
 
-	if (priv->scan_type == IWL_SCAN_OFFCH_TX && priv->_agn.offchan_tx_skb) {
+	if (priv->scan_type == IWL_SCAN_OFFCH_TX && priv->offchan_tx_skb) {
 		ieee80211_tx_status_irqsafe(priv->hw,
-					    priv->_agn.offchan_tx_skb);
-		priv->_agn.offchan_tx_skb = NULL;
+					    priv->offchan_tx_skb);
+		priv->offchan_tx_skb = NULL;
 	}
 
 	if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) {