Removed Polymer from Observatory deps

packages/polymer/test/template_attr_template_test_import.html

Index: packages/polymer/test/template_attr_template_test_import.html
diff --git a/packages/polymer/test/template_attr_template_test_import.html b/packages/polymer/test/template_attr_template_test_import.html
deleted file mode 100644
index e05538f3bedb7c5e6c2a2d26b28fc70bcc4e14ce..0000000000000000000000000000000000000000
--- a/packages/polymer/test/template_attr_template_test_import.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<!--
-   Copyright (c) 2013, 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.
--->
-<link rel="import" href="packages/polymer/polymer.html">
-<polymer-element name="decoration-test">
-  <template>
-    <select id="select">
-      <option template repeat="{{opt in options}}" value="{{opt}}">{{opt}}</option>
-    </select>
-  </template>
-</polymer-element>