rtc: cmos: remove empty asm/mc146818rtc.h files

Nothing on these architectures ever includes the asm/mc146818rtc.h
file, the drivers that used to do this have been fixed long ago,
and the remaining users are all PC-specific.

This removes the files for good.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

arch/frv/include/asm/mc146818rtc.h

-/* mc146818rtc.h: RTC defs
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-
-#endif /* _ASM_MC146818RTC_H */

arch/h8300/include/asm/mc146818rtc.h

-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _H8300_MC146818RTC_H
-#define _H8300_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
-
-#endif /* _H8300_MC146818RTC_H */

arch/ia64/include/asm/mc146818rtc.h

-#ifndef _ASM_IA64_MC146818RTC_H
-#define _ASM_IA64_MC146818RTC_H
-
-/*
- * Machine dependent access functions for RTC registers.
- */
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_IA64_MC146818RTC_H */

arch/parisc/include/asm/mc146818rtc.h

-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_MC146818RTC_H */

arch/sh/include/asm/mc146818rtc.h

-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#endif /* _ASM_MC146818RTC_H */