qcacld-3.0: Cache deleted station's information in case of SAP

During disconnection process, cache disconnecting STA information
so that the same information is updated to upper-layer on receiving
GET_STATION vendor command, after disconnection.

Change-Id: I2e5a0be42d81b86e6f4490de1bdf9d7e0797506d
CRs-Fixed: 2126182
diff --git a/core/hdd/src/wlan_hdd_wext.c b/core/hdd/src/wlan_hdd_wext.c
index 9b6e35a..3589991 100644
--- a/core/hdd/src/wlan_hdd_wext.c
+++ b/core/hdd/src/wlan_hdd_wext.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2011-2018 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -3857,9 +3857,8 @@
 	struct sir_peer_info *rssi_info;
 	uint8_t peer_num;
 
-	if ((!sta_rssi) || (!context)) {
-		hdd_err("Bad param, sta_rssi [%pK] context [%pK]",
-			sta_rssi, context);
+	if ((!sta_rssi)) {
+		hdd_err("Bad param, sta_rssi [%pK]", sta_rssi);
 		return;
 	}
 
@@ -3887,6 +3886,7 @@
 
 	hdd_request_complete(request);
 	hdd_request_put(request);
+
 }
 
 int wlan_hdd_get_peer_rssi(struct hdd_adapter *adapter,