Remove irt_nonsfi.h, which is no longer necessary.

The definition of nacl_irt_icache was moved to irt.h in the NaCl repository,
so irt_nonsfi.h is no longer necessary.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=4033

Review URL: https://codereview.chromium.org/935743004

Cr-Commit-Position: refs/heads/master@{#317728}

components/nacl/loader/nonsfi/irt_interfaces.h

@@ -7,7 +7,6 @@
 
 #include "base/basictypes.h"
 #include "native_client/src/untrusted/irt/irt.h"
-#include "ppapi/nacl_irt/public/irt_nonsfi.h"
 #include "ppapi/nacl_irt/public/irt_ppapi.h"
 
 namespace nacl {

ppapi/nacl_irt/public/irt_nonsfi.h

-/*
- * Copyright 2014 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-// TODO(mazda): Remove this file once NaCl has been rolled to the revision
-// that includes the definition of nacl_irt_icache.
-// https://code.google.com/p/nativeclient/issues/detail?id=4033
-
-#ifndef PPAPI_NACL_IRT_PUBLIC_IRT_NONSFI_H_
-#define PPAPI_NACL_IRT_PUBLIC_IRT_NONSFI_H_
-
-#if !defined(NACL_IRT_ICACHE_v0_1)
-
-#include <stddef.h>
-
-/*
- * This interface is only available on ARM, only for Non-SFI.
- */
-#define NACL_IRT_ICACHE_v0_1 "nacl-irt-icache-0.1"
-struct nacl_irt_icache {
-  /*
-   * clear_cache() makes instruction cache and data cache for the address
-   * range from |addr| to |(intptr_t)addr + size| (exclusive) coherent.
-   */
-  int (*clear_cache)(void* addr, size_t size);
-};
-
-#endif
-
-#endif  // PPAPI_NACL_IRT_PUBLIC_IRT_NONSFI_H_