PM: Remove unused asm/suspend.h

This patch removes unused asm/suspend.h files for
the following architectures:

 alpha, arm, ia64, m68k, mips, s390, um
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

arch/alpha/include/asm/suspend.h

-#ifndef __ALPHA_SUSPEND_H
-#define __ALPHA_SUSPEND_H
-
-/* Dummy include. */
-
-#endif  /* __ALPHA_SUSPEND_H */

arch/arm/include/asm/suspend.h

-#ifndef _ASMARM_SUSPEND_H
-#define _ASMARM_SUSPEND_H
-
-#endif

arch/ia64/include/asm/suspend.h

-/* dummy (must be non-empty to prevent prejudicial removal...) */

arch/m68k/include/asm/suspend.h

-#ifndef _M68K_SUSPEND_H
-#define _M68K_SUSPEND_H
-
-/* Dummy include. */
-
-#endif  /* _M68K_SUSPEND_H */

arch/mips/include/asm/suspend.h

-#ifndef __ASM_SUSPEND_H
-#define __ASM_SUSPEND_H
-
-/* Somewhen...  Maybe :-)  */
-
-#endif /* __ASM_SUSPEND_H */

arch/s390/include/asm/suspend.h

-#ifndef __ASM_S390_SUSPEND_H
-#define __ASM_S390_SUSPEND_H
-
-#endif
-

arch/um/include/asm/suspend.h

-#ifndef __UM_SUSPEND_H
-#define __UM_SUSPEND_H
-
-#endif