Remove leftover file, should have happened in the Linux loader rewrite commit.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2836 c046a42c-6fe2-441c-8c8c-71466251a162

pc-bios/linux_boot.S

-/*
- * QEMU Boot sector to launch a preloaded Linux kernel
- * Copyright (c) 2004 Fabrice Bellard
- */
-
-#define LOAD_SEG 0x9000
-        
-.code16	
-.text
-	.globl	_start
-
-_start:
-        cli
-        cld
-        mov $LOAD_SEG, %ax
-        mov %ax, %ds
-        mov %ax, %es
-        mov %ax, %fs
-        mov %ax, %gs
-        mov %ax, %ss
-        mov $0x8ffe, %sp
-        ljmp $LOAD_SEG + 0x20, $0
-
-1:              
-        .fill 510 - (1b - _start), 1, 0
-
-        /* boot sector signature */
-        .byte 0x55
-        .byte 0xaa