qcacmn: target_if: Remove legacy markings

Per current guidance remove legacy markings.

Change-Id: I09d2640cdc8b586556cc543b4fef69ce8dba4514
CRs-Fixed: 2230684

target_if/wifi_pos/src/target_if_wifi_pos.c

@@ -1,9 +1,6 @@
 /*
  * Copyright (c) 2013-2018 The Linux Foundation. All rights reserved.
  *
- * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
- *
- *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
  * above copyright notice and this permission notice appear in all
@@ -19,12 +16,6 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/*
- * This file was originally distributed by Qualcomm Atheros, Inc.
- * under proprietary terms before Copyright ownership was assigned
- * to the Linux Foundation.
- */
-
 /**
  * DOC: target_if_wifi_pos.c
  * This file defines the functions pertinent to wifi positioning component's