qcacld-3.0: Remove typedef cfg80211_exttdls_callback

Change Ib6407bb18bc77e92e1cdd3b38d6ff3051f03b74c ("qcacld-3.0:
Remove unused tdls api in hdd") removed the last clients of
cfg80211_exttdls_callback. Since it is obsolete, remove it.

Change-Id: I90ffb7134698109f47449503e5f720f1ebf121e9
CRs-Fixed: 2376934

core/hdd/inc/wlan_hdd_tdls.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2019 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
@@ -32,12 +32,6 @@ struct hdd_context;
 #define ENA_TDLS_BUFFER_STA   (1 << 1)  /* TDLS Buffer STA support */
 #define ENA_TDLS_SLEEP_STA    (1 << 2)  /* TDLS Sleep STA support */
 
-typedef int (*cfg80211_exttdls_callback)(const uint8_t *mac,
-					 uint32_t opclass,
-					 uint32_t channel,
-					 uint32_t state,
-					 int32_t reason, void *ctx);
-
 int wlan_hdd_tdls_get_all_peers(struct hdd_adapter *adapter, char *buf,
 				int buflen);