staging: rtl8723bs: remove unused cnt from recv_func()

The 'cnt' is used to show how many pending frames are processed, and the
debug code has been removed, so removing 'cnt' is safe.

Otherwise, clang warns:

core/rtw_recv.c:2030:7: warning:
	 variable 'cnt' set but not used [-Wunused-but-set-variable]
 2030 |                 int cnt = 0;
      |                     ^
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20240913002815.5149-4-pkshih@realtek.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_recv.c

@@ -2026,12 +2026,9 @@ static int recv_func(struct adapter *padapter, union recv_frame *rframe)
 	/* check if need to handle uc_swdec_pending_queue*/
 	if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) {
 		union recv_frame *pending_frame;
-		int cnt = 0;
 
-		while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) {
-			cnt++;
+		while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue)))
 			recv_func_posthandle(padapter, pending_frame);
-		}
 	}
 
 	ret = recv_func_prehandle(padapter, rframe);