Remove service-compiler related code.

samples/todomvc/unix_ia32_hack.c

-// Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE.md file.
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-FILE* fopen$UNIX2003(const char* filename, const char* mode) {
-  return fopen(filename, mode);
-}
-
-size_t fwrite$UNIX2003(const void* a, size_t b, size_t c, FILE* d) {
-  return fwrite(a, b, c, d);
-}
-
-int fputs$UNIX2003(const char* restrict str, FILE* restrict stream) {
-  return fputs(str, stream);
-}