Removed Polymer from Observatory deps

packages/polymer/e2e_test/experimental_boot/lib/a.dart

Index: packages/polymer/e2e_test/experimental_boot/lib/a.dart
diff --git a/packages/polymer/e2e_test/experimental_boot/lib/a.dart b/packages/polymer/e2e_test/experimental_boot/lib/a.dart
deleted file mode 100644
index adc2b48647ad32d8cf066dbbb4153896d1b51321..0000000000000000000000000000000000000000
--- a/packages/polymer/e2e_test/experimental_boot/lib/a.dart
+++ /dev/null
@@ -1,16 +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.
-
-library experimental_boot.a;
-
-import 'package:polymer/polymer.dart';
-import 'package:experimental_boot/c.dart';
-import 'd.dart';
-
-int a = 0;
-@initMethod initA() {
-  a++;
-  c++;
-  d++;
-}