Remove old build related scripts that are no longer needed.

src/scripts/import_native_build.sh

-#!/bin/bash
-
-# Copyright (c) 2010 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.
-
-# Load common constants.  This should be the first executable line.
-# The path to common.sh should be relative to your script's location.
-. "$(dirname "$0")/common.sh"
-
-assert_inside_chroot
-assert_not_root_user
-
-# Flags
-DEFINE_string architecture armel "The architecture to fetch." a
-
-# Parse command line
-FLAGS "$@" || exit 1
-eval set -- "${FLAGS_ARGV}"
-
-# Die on error
-set -e
-
-LOCAL_PKG_DIR="${DEFAULT_BUILD_ROOT}/${FLAGS_architecture}/local_packages"
-
-mkdir -p "${LOCAL_PKG_DIR}"
-cd "${LOCAL_PKG_DIR}"
-
-DEB_BUILD_ARCH="$(dpkg-architecture -qDEB_BUILD_ARCH)"
-
-DEBS=
-for SRC; do
-  SRCCACHE="$(apt-cache showsrc "$SRC")"
-  BINS="$(echo "$SRCCACHE" | grep -m1 ^Binary: | cut -d' ' -f2- | sed 's/,//g')"
-  VER="$(echo "$SRCCACHE" | grep -m1 ^Version: | cut -d' ' -f2)"
-  for BIN in $BINS; do
-    BINCACHE="$(apt-cache show "$BIN")" || continue # might be a udeb
-    DEB="$(echo "$BINCACHE" | grep -m1 ^Filename: | cut -d' ' -f2 | sed "s/_${DEB_BUILD_ARCH}\.deb/_${FLAGS_architecture}.deb/")"
-    wget -N "http://ports.ubuntu.com/ubuntu-ports/${DEB}"
-    DEBS="$DEBS ${DEB##*/}"
-  done
-  cat >"${SRC}_${VER#*:}_${FLAGS_architecture}.changes" <<EOF
-Version: $VER
-Fake: yes
-EOF
-done
-
-if [ "$DEBS" ]; then
-  chromiumos-build --convert -a "${FLAGS_architecture}" $DEBS
-fi