Remove SendPortSync and ReceivePortSync.

third_party/pkg/js/example/google-maps/directions.css

Index: third_party/pkg/js/example/google-maps/directions.css
diff --git a/third_party/pkg/js/example/google-maps/directions.css b/third_party/pkg/js/example/google-maps/directions.css
deleted file mode 100755
index be648bd6e5e2cff0a7e2b2a4862c4a8333a89123..0000000000000000000000000000000000000000
--- a/third_party/pkg/js/example/google-maps/directions.css
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file */
-/* for details. All rights reserved. Use of this source code is governed by a */
-/* BSD-style license that can be found in the LICENSE file. */
-
-html, body {
-    height: 100%;
-    margin: 0;
-    padding: 0;
-}
-
-#map_canvas {
-    height: 100%;
-}
-
-#directions_panel {
-    height: 100%;
-    float: right;
-    width: 390px;
-    overflow: auto;
-}
-
-#control {
-    background: #fff;
-    padding: 5px;
-    font-size: 14px;
-    font-family: Arial;
-    border: 1px solid #ccc;
-    box-shadow: 0 2px 2px rgba(33, 33, 33, 0.4);
-    display: none;
-}