staging: csr: remove indications.c

It's an empty file, no need to build and link it.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/csr/Makefile

@@ -9,7 +9,6 @@ csr_wifi-y :=	bh.o				\
 		data_tx.o			\
 		drv.o				\
 		firmware.o			\
-		indications.o			\
 		inet.o				\
 		init_hw.o			\
 		io.o				\

drivers/staging/csr/indications.c

-/*
- * ***************************************************************************
- * FILE:     indications.c
- *
- * PURPOSE:
- *      Callbacks to process signals sent to us by the UniFi chip.
- *
- *      This file is linux-specific.
- *
- * Copyright (C) 2005-2008 by Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- *
- * ***************************************************************************
- */
-#include "csr_wifi_hip_unifi.h"
-#include "unifi_priv.h"