Remove all remaining obj_int_extract code

unpack_lib_posix.sh

-#!/bin/bash -e
-#
-# 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.
-
-# This script is used to unpack a .a file into object files.
-#
-# Arguments:
-#
-# d - Output directory.
-# a - List of possible locations of the archive.
-# f - List of files to extract.
-#
-
-export LC_ALL=C
-
-# Avoid things like -n messing up the grepping below.
-unset GREP_OPTIONS
-
-while getopts "d:a:f:r:" flag
-do
-  if [ "$flag" = "d" ]; then
-    out_dir=$OPTARG
-  elif [ "$flag" = "a" ]; then
-    lib_files="$OPTARG $lib_files"
-  elif [ "$flag" = "f" ]; then
-    obj_files="$OPTARG $obj_files"
-  elif [ "$flag" = "r" ]; then
-    ar=$OPTARG
-  fi
-done
-
-for f in $lib_files; do
-  if [ -a $f ]; then
-    lib_file=$f
-    break
-  fi
-done
-
-if [ -z "$lib_file" ]; then
-  echo "Failed to locate a static library."
-  false
-  exit
-fi
-
-if [ ! -f "$ar" ]; then
-  # Find the appropriate ar to use.
-  ar="ar"
-  if [ -n "$AR_target" ]; then
-    ar=$AR_target
-  elif [ -n "$AR" ]; then
-    ar=$AR
-  fi
-fi
-
-obj_list="$($ar t $lib_file | grep '\.o$')"
-
-function extract_object {
-  for f in $obj_list; do
-    filename="${f##*/}"
-
-    if [ -z "$(echo $filename | grep $1)" ]; then
-      continue
-    fi
-
-    # Only echo this if debugging.
-    # echo "Extract $filename from archive to $out_dir/$1."
-    $ar p $lib_file $filename > $out_dir/$1
-    [ -s $out_dir/$1 ] || exit 1
-    break
-  done
-}
-
-for f in $obj_files; do
-  extract_object $f
-done