build: Delete files from the previous build system.

src/platform/cryptohome/debian/preinst

Index: src/platform/cryptohome/debian/preinst
diff --git a/src/platform/cryptohome/debian/preinst b/src/platform/cryptohome/debian/preinst
deleted file mode 100644
index 0ae66251ed14846552e3d0edb52ec331c86804e2..0000000000000000000000000000000000000000
--- a/src/platform/cryptohome/debian/preinst
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/sh
-# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-set -e
-PKG=chromeos-cryptohome
-CFG=pam_mount.conf.xml
-case "$1" in
-    install|upgrade)
-        dpkg-divert --add --package ${PKG} --rename \
-                    --divert /etc/security/$CFG.chromeos-orig /etc/security/$CFG
-    ;;
-    abort-upgrade)
-    ;;
-    *)
-        echo "preinst called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
-
-#DEBHELPER#
-exit 0