qcacld-3.0: Remove acs_pending_work member in hdd_adapter

The acs_pending_work member in the hdd_adapter structure has
no references in the driver so remove this obsolete variable.
The code that previously used this variable was removed by Change-Id:
I439398b406e9371a8e443f5409bd3f25b3062501

Change-Id: I64ed789ad0d0751cc683f48bd859b9d600c11f6e
CRs-Fixed: 3213562

core/hdd/inc/wlan_hdd_main.h

@@ -1462,10 +1462,6 @@ struct hdd_adapter {
 	uint8_t psb_changed;
 	/* UAPSD psb value configured through framework */
 	uint8_t configured_psb;
-	/* Use delayed work for Sec AP ACS as Pri AP Startup need to complete
-	 * since CSR (PMAC Struct) Config is same for both AP
-	 */
-	struct delayed_work acs_pending_work;
 
 	struct work_struct scan_block_work;
 	qdf_list_t blocked_scan_request_q;