Delete ChromeOS code

gyp/sfntly.gyp

 # Copyright (c) 2011 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.
 {
   'targets': [
     {
       'target_name': 'sfntly',
       'type': 'static_library',
       'includes': [
         'common_conditions.gypi',
@@ skipping 26 matching lines @@
         [ 'skia_os == "win"',
           {
             'defines': [ 'WIN32', ],
             'msvs_settings': {
               'VCCLCompilerTool': {
                 'AdditionalOptions': [ '/EHsc' ],
               },
             },
           }
         ],
-        [ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]',
+        [ 'skia_os in ["linux", "freebsd", "openbsd", "solaris"]',
           { 'link_settings': { 'libraries': [ '-lpthread', ], }, },
         ],
       ],
       # TODO(jschuh): http://crbug.com/167187
       'msvs_disabled_warnings': [ 4267, 4244 ],
     },
   ]
 }