qcacmn: Don't encapsulate packets in htc_send_pkt

Avoid leaking pointers to freed stack memory by not enqueing packets
onto a stack local queue in htc_send_pkt
In particular, the packet was not being removed from the stack queue
when a dma map error occurs.

Change-Id: I4519a302b3d6cc19f52e8cefa71dbd750ede0a0b
CRs-Fixed: 2119792

htc/htc_api.h

@@ -625,25 +625,6 @@ bool htc_get_endpoint_statistics(HTC_HANDLE HTCHandle,
  */
 void htc_unblock_recv(HTC_HANDLE HTCHandle);
 
-/**
- * htc_send_pkts_multiple - Send a series of HTC packets
- * @HTCHandle - HTC handle
- * @pPktQueue - local queue holding packets to send
- *
- * Caller must initialize each packet using SET_HTC_PACKET_INFO_TX()
- * macro. The queue must only contain packets directed at the same
- * endpoint. Caller supplies a pointer to an HTC_PACKET_QUEUE structure
- * holding the TX packets in FIFO order. This API will remove the
- * packets from the pkt queue and place them into the HTC Tx Queue
- * and bundle messages where possible.
- * The caller may allocate the pkt queue on the stack to hold the pkts.
- * This interface is fully asynchronous.  On error, htc_send_pkts will
- * call the registered Endpoint callback to cleanup the packet.
- * Return: QDF_STATUS_SUCCESS
- */
-QDF_STATUS htc_send_pkts_multiple(HTC_HANDLE HTCHandle,
-				HTC_PACKET_QUEUE *pPktQueue);
-
 /**
  * htc_add_receive_pkt_multiple - Add multiple receive packets to HTC
  * @HTCHandle - HTC handle