x86: remove mach_reboot.h

all reboot details are handled in reboot.c and quirks are handled
via reboot_fixups_32.c.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/asm-x86/mach-default/mach_reboot.h

-/*
- *  arch/i386/mach-generic/mach_reboot.h
- *
- *  Machine specific reboot functions for generic.
- *  Split out from reboot.c by Osamu Tomita <tomita@cinet.co.jp>
- */
-#ifndef _MACH_REBOOT_H
-#define _MACH_REBOOT_H
-
-static inline void kb_wait(void)
-{
-	int i;
-
-	for (i = 0; i < 0x10000; i++)
-		if ((inb_p(0x64) & 0x02) == 0)
-			break;
-}
-
-static inline void mach_reboot(void)
-{
-	int i;
-
-	/* old method, works on most machines */
-	for (i = 0; i < 10; i++) {
-		kb_wait();
-		udelay(50);
-		outb(0xfe, 0x64);	/* pulse reset low */
-		udelay(50);
-	}
-
-	/* New method: sets the "System flag" which, when set, indicates
-	 * successful completion of the keyboard controller self-test (Basic
-	 * Assurance Test, BAT).  This is needed for some machines with no
-	 * keyboard plugged in.  This read-modify-write sequence sets only the
-	 * system flag
-	 */
-	for (i = 0; i < 10; i++) {
-		int cmd;
-
-		outb(0x20, 0x64);	/* read Controller Command Byte */
-		udelay(50);
-		kb_wait();
-		udelay(50);
-		cmd = inb(0x60);
-		udelay(50);
-		kb_wait();
-		udelay(50);
-		outb(0x60, 0x64);	/* write Controller Command Byte */
-		udelay(50);
-		kb_wait();
-		udelay(50);
-		outb(cmd | 0x14, 0x60); /* set "System flag" and "Keyboard Disabled" */
-		udelay(50);
-		kb_wait();
-		udelay(50);
-		outb(0xfe, 0x64);	/* pulse reset low */
-		udelay(50);
-	}
-}
-
-#endif /* !_MACH_REBOOT_H */