qcacld-3.0: Remove hdd_txrx_get_tx_ack_count()

The functionality that called hdd_txrx_get_tx_ack_count() was remove by:
  qcacld-3.0: Code cleanup from HDD module
  Change-Id If5f1cf432b5c02848202debee7de696b2f20be9a

Since datapath componentization made hdd_txrx_get_tx_ack_count()
obsolete, remove it.

Change-Id: I86cb82794f6ae324034d8a4fb76ac5084aced3aa
CRs-Fixed: 3424800

core/hdd/inc/wlan_hdd_tx_rx.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. 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
@@ -324,14 +324,6 @@ static inline void netif_trans_update(struct net_device *dev)
 	__func__, jiffies)
 #endif
 
-/**
- * hdd_txrx_get_tx_ack_count() - get tx acked count
- * @adapter: Pointer to adapter
- *
- * Return: tx acked count
- */
-uint32_t hdd_txrx_get_tx_ack_count(struct hdd_adapter *adapter);
-
 /**
  * hdd_dp_cfg_update() - update hdd config for HDD DP INIs
  * @psoc: Pointer to psoc obj