Remove Polymer 0.5.

third_party/polymer/components-chromium/paper-dropdown/paper-dropdown-transition.css

Index: third_party/polymer/components-chromium/paper-dropdown/paper-dropdown-transition.css
diff --git a/third_party/polymer/components-chromium/paper-dropdown/paper-dropdown-transition.css b/third_party/polymer/components-chromium/paper-dropdown/paper-dropdown-transition.css
deleted file mode 100644
index d544eadeaf9c972053aac70747a7b7bdfee42e42..0000000000000000000000000000000000000000
--- a/third_party/polymer/components-chromium/paper-dropdown/paper-dropdown-transition.css
+++ /dev/null
@@ -1,15 +0,0 @@
-/* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt */
-
-:host(.core-transition) #ripple,
-:host(.core-transition) #background {
-  opacity: 0;
-}
-
-:host(.core-transition) #scroller {
-  opacity: 0;
-}