Remove fake_async from third_party/pkg.

tools/deps/dartium.deps/DEPS

 import gclient_utils
 import os
 
 path = gclient_utils.FindGclientRoot(os.getcwd())
 execfile(os.path.join(path, 'src', 'dart', 'tools', 'deps', 'dartium.deps', 'DEPS.chromium')) # Include proper Chromium DEPS.
 
 # Now we need to override some settings and add some new ones.
 
 vars.update({
   "chromium_url": "http://src.chromium.org/svn",
@@ skipping 51 matching lines @@
   "string_scanner_rev": "@3e7617d6f74ba382e9b6130b1cc12091d89a9bc5",
   "test_tag": "@0.12.1",
   "unittest_tag": "@0.11.6",
   "utf_rev": "@1f55027068759e2d52f2c12de6a57cce5f3c5ee6",
   "watcher_tag": "@0.9.5",
   "yaml_rev": "@563a5ffd4a800a2897b8f4dd6b19f2a370df2f2b",
   "zlib_rev": "@c3d0a6190f2f8c924a05ab6cc97b8f975bddd33f",
   "web_components_rev": "@0e636b534d9b12c9e96f841e6679398e91a986ec",
 
   "co19_rev": "@f95f109fea67127a220958794ef5200a63cb454c",
-  "fake_async_rev": "@38614",
 })
 
 def massage_deps(deps):
   for key, value in deps.items():
     if value is None: continue
 
     if value.startswith('/trunk'):
       deps[key] = Var("chromium_url") + value
       continue
 
@@ skipping 93 matching lines @@
   "src/dart/third_party/pkg/yaml":
       (Var("github_mirror") % "yaml") + Var("yaml_rev"),
 
   # TODO(sigmund): should be src/dart/third_party/pkg/unittest (dartbug.com/21949)
   "src/dart/pkg/unittest":
       (Var("github_mirror") % "test") + Var("unittest_tag"),
 
   "src/dart/third_party/WebCore":
     "http://dart.googlecode.com/svn/third_party/WebCore",
 
-  "src/dart/third_party/pkg/fake_async":
-    "http://dart.googlecode.com/svn/third_party/fake_async" +
-    Var("fake_async_rev"),
-
   "src/dart/tests/co19/src":
       (Var("github_mirror") % "co19") + Var("co19_rev"),
 
   "src/dart/third_party/zlib":
       Var("chromium_git") + "/chromium/src/third_party/zlib.git" +
       Var("zlib_rev"),
 })
 
 deps_os['win'].update({
   "src/chrome/tools/test/reference_build/chrome_win": None
@@ skipping 52 matching lines @@
     "--no_resume",
     "--bucket",
     "dart-dependencies",
     "--recursive",
     "--auto_platform",
     "--extract",
     "--directory",
     "src/dart/tools/sdks",
   ],
 })