qcacmn: Remove unused roam ini gRoamBeaconRssiWeight

Currently, gRoamBeaconRssiWeight is not used in HOST or
FW.

Remove logic to pass value of INI gRoamBeaconRssiWeight
to FW.

Change-Id: Ifa1472ef413d20d0e54649bc24dd6c8d6aac4bc7
CRs-Fixed: 2770278

wmi/inc/wmi_unified_priv.h

@@ -695,7 +695,6 @@ QDF_STATUS (*send_roam_scan_offload_rssi_change_cmd)(
 QDF_STATUS (*send_roam_scan_offload_rssi_change_cmd)(wmi_unified_t wmi_handle,
 					uint32_t vdev_id,
 					int32_t rssi_change_thresh,
-					uint32_t bcn_rssi_weight,
 					uint32_t hirssi_delay_btw_scans);
 QDF_STATUS (*send_roam_scan_offload_chan_list_cmd)(wmi_unified_t wmi_handle,
 				   uint8_t chan_count,