staging: r8188eu: remove rtw_enqueue_recvbuf_to_head()

Function rtw_enqueue_recvbuf_to_head() is not used, remove it.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210922200420.9693-45-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_recv.c

@@ -257,18 +257,6 @@ u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter)
 	return cnt;
 }
 
-int rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue)
-{
-	spin_lock_bh(&queue->lock);
-
-	list_del_init(&precvbuf->list);
-	list_add(&precvbuf->list, get_list_head(queue));
-
-	spin_unlock_bh(&queue->lock);
-
-	return _SUCCESS;
-}
-
 static int recvframe_chkmic(struct adapter *adapter,  struct recv_frame *precvframe)
 {
 	int	i, res = _SUCCESS;

drivers/staging/r8188eu/include/rtw_recv.h

@@ -284,7 +284,6 @@ int rtw_enqueue_recvframe(struct recv_frame *precvframe, struct __queue *queue);
 void rtw_free_recvframe_queue(struct __queue *pframequeue,
 			      struct __queue *pfree_recv_queue);
 u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter);
-int rtw_enqueue_recvbuf_to_head(struct recv_buf *buf, struct __queue *queue);
 
 void rtw_reordering_ctrl_timeout_handler(void *pcontext);