qcacmn: umac: Remove legacy markings

Per current guidance remove legacy markings.

Change-Id: I34c7acfad802a3878ffa373489b7f6a4194abb62
CRs-Fixed: 2230684

umac/dfs/core/src/dfs_random_chan_sel.h

@@ -1,9 +1,6 @@
 /*
  * Copyright (c) 2012-2018 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.
- */
-
 /* dfs regions definitions */
 /* un-initialized region */
 #define DFS_UNINIT_REGION_VAL   0

umac/dfs/core/src/misc/dfs_random_chan_sel.c

@@ -1,9 +1,6 @@
 /*
  * Copyright (c) 2012-2018 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.
- */
-
 #include "../dfs.h"
 #include "../dfs_random_chan_sel.h"
 #include <qdf_mc_timer.h>