Removed Polymer from Observatory deps

packages/polymer/test/sort_registration_part1.dart

Index: packages/polymer/test/sort_registration_part1.dart
diff --git a/packages/polymer/test/sort_registration_part1.dart b/packages/polymer/test/sort_registration_part1.dart
deleted file mode 100644
index b9f2497d8246954c2fd7a8b1e8c1a65c654e7f9a..0000000000000000000000000000000000000000
--- a/packages/polymer/test/sort_registration_part1.dart
+++ /dev/null
@@ -1,22 +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.
-
-part of polymer.test.sort_registration_test;
-
-// D will be registered after B below.
-@CustomTag('x-d')
-class D extends B {
-  D.created() : super.created();
-}
-
-@CustomTag('x-b')
-class B extends A {
-  B.created() : super.created();
-}
-
-// C is declared in another file, but it will be registered after B and before E
-@CustomTag('x-e')
-class E extends C {
-  E.created() : super.created();
-}