qcacmn: Cleanup for function wlan_reg_is_dfs_ch()

Replace wlan_reg_is_dfs_ch() with wlan_reg_is_dfs_for_freq()

Change-Id: Idb40beeea3ba07e133f3346b46998ae9ac549ba7
CRs-Fixed: 2615754

umac/regulatory/dispatcher/inc/wlan_reg_services_api.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -682,15 +682,6 @@ void wlan_reg_update_nol_ch(struct wlan_objmgr_pdev *pdev,
 			    uint8_t num_ch,
 			    bool nol_ch);
 
-/**
- * wlan_reg_is_dfs_ch () - Checks the channel state for DFS
- * @pdev: pdev ptr
- * @chan: channel
- *
- * Return: true or false
- */
-bool wlan_reg_is_dfs_ch(struct wlan_objmgr_pdev *pdev, uint8_t chan);
-
 /**
  * wlan_reg_is_dsrc_chan () - Checks if the channel is dsrc channel or not
  * @pdev: pdev ptr

umac/regulatory/dispatcher/src/wlan_reg_services_api.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
  *
  *
  * Permission to use, copy, modify, and/or distribute this software for
@@ -488,12 +488,6 @@ void wlan_reg_update_nol_history_ch(struct wlan_objmgr_pdev *pdev,
 	reg_update_nol_history_ch(pdev, ch_list, num_ch, nol_history_ch);
 }
 
-bool wlan_reg_is_dfs_ch(struct wlan_objmgr_pdev *pdev,
-			uint8_t chan)
-{
-	return reg_is_dfs_ch(pdev, chan);
-}
-
 bool wlan_reg_is_passive_or_disable_ch(struct wlan_objmgr_pdev *pdev,
 				       uint8_t chan)
 {