Remove --find-inode-switch hack from chrome-sandbox

sandbox/linux/suid/linux_util.h

Index: sandbox/linux/suid/linux_util.h
diff --git a/sandbox/linux/suid/linux_util.h b/sandbox/linux/suid/linux_util.h
deleted file mode 100644
index d06425227a96312383e80543ac342e26251d14ef..0000000000000000000000000000000000000000
--- a/sandbox/linux/suid/linux_util.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012 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.
-
-// The following is duplicated from base/linux_utils.h.
-// We shouldn't link against C++ code in a setuid binary.
-
-#ifndef SANDBOX_LINUX_SUID_LINUX_UTIL_H_
-#define SANDBOX_LINUX_SUID_LINUX_UTIL_H_
-
-#include <stdbool.h>
-#include <sys/types.h>
-
-static const char kFindInodeSwitch[] = "--find-inode";
-static const char kSuidSandboxGetApiSwitch[] = "--get-api";
-
-// Find the process which holds the given socket, named by inode number. If
-// multiple processes hold the socket, this function returns false.
-bool FindProcessHoldingSocket(pid_t* pid_out, ino_t socket_inode);
-
-#endif  // SANDBOX_LINUX_SUID_LINUX_UTIL_H_