Remove dedup-tests.py (it has moved upstream) and 2 empty

directories.
Review URL: http://codereview.chromium.org/6263015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72686 0039d316-1c4b-4281-b951-d872f2087c98

webkit/tools/layout_tests/webkitpy/layout_tests/dedup-tests.py

-#!/usr/bin/python
-# Copyright (c) 2009 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.
-
-"""dedup-tests -- print test results duplicated between win and linux.
-
-Because the outputs are very similar, we fall back on Windows outputs
-if there isn't an expected output for Linux layout tests.  This means
-that any file that is duplicated between the Linux and Windows directories
-is redundant.
-
-This command dumps out all such files.  You can use it like:
-  dedup-tests.py   # print out the bad files
-  dedup-tests.py | xargs git rm   # delete the bad files
-"""
-
-import collections
-import os.path
-import subprocess
-import sys
-
-# A map of file hash => set of all files with that hash.
-hashes = collections.defaultdict(set)
-
-# Fill in the map.
-cmd = ['git', 'ls-tree', '-r', 'HEAD', 'webkit/data/layout_tests/']
-try:
-    git = subprocess.Popen(cmd, stdout=subprocess.PIPE)
-except OSError, e:
-    if e.errno == 2:  # No such file or directory.
-        print >> sys.stderr, "Error: 'No such file' when running git."
-        print >> sys.stderr, "This script requires git."
-        sys.exit(1)
-    raise e
-
-for line in git.stdout:
-    attrs, file = line.strip().split('\t')
-    _, _, hash = attrs.split(' ')
-    hashes[hash].add(file)
-
-# Dump out duplicated files.
-for cluster in hashes.values():
-    if len(cluster) < 2:
-        continue
-    for file in cluster:
-        if '/chromium-linux/' in file:
-            if file.replace('/chromium-linux/', '/chromium-win/') in cluster:
-                print file