Remove the need for <polymer-selector> in the PDF plugin.

third_party/polymer/polymer-selector/test/js/polymer-selector.js

Index: third_party/polymer/polymer-selector/test/js/polymer-selector.js
diff --git a/third_party/polymer/polymer-selector/test/js/polymer-selector.js b/third_party/polymer/polymer-selector/test/js/polymer-selector.js
deleted file mode 100644
index 537fa393c9fd51c0feba97b9abb5914f27d8453f..0000000000000000000000000000000000000000
--- a/third_party/polymer/polymer-selector/test/js/polymer-selector.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * Copyright 2013 The Polymer Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style
- * license that can be found in the LICENSE file.
- */
-
-htmlSuite('polymer-selector', function() {
-  htmlTest('html/polymer-selector-basic.html');
-  htmlTest('html/polymer-selector-activate-event.html');
-  htmlTest('html/polymer-selector-multi.html');
-});