Remove outdated copy of download_material_design_icons

sky/tools/download_material_design_icons

Index: sky/tools/download_material_design_icons
diff --git a/sky/tools/download_material_design_icons b/sky/tools/download_material_design_icons
deleted file mode 100755
index fd08a1dd34ac7f197e1a4bee3215e3068ded9df6..0000000000000000000000000000000000000000
--- a/sky/tools/download_material_design_icons
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/usr/bin/env python
-# Copyright (c) 2015 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.
-
-import os
-import subprocess
-
-from webkitpy.common.system import filesystem
-from webkitpy.common.webkit_finder import WebKitFinder
-
-finder = WebKitFinder(filesystem.FileSystem())
-
-assets_dir = finder.path_from_chromium_base('sky', 'assets')
-sha1_path = os.path.join(assets_dir, 'material-design-icons.sha1')
-
-with open(sha1_path) as f:
-    sha1 = f.read()
-
-tgz_path = os.path.join(assets_dir, 'material-design-icons.tgz')
-subprocess.call([
-    'download_from_google_storage',
-    '--no_resume',
-    '--no_auth',
-    '--bucket', 'mojo',
-    '--output', tgz_path,
-    'material-design-icons/%s' % sha1,
-])
-
-output_path = os.path.join(assets_dir, tgz_path)
-subprocess.call([
-    'tar', '-xzf', output_path, '-C', assets_dir
-])
-
-os.unlink(tgz_path)