Remove Polymer 0.5.

third_party/polymer/components/core-transition/core-transition-overlay.css

-/* 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) {
-  outline: none;
-  overflow: auto;
-  opacity: 0;
-  -webkit-transition: -webkit-transform 0.2s ease-in-out, opacity 0.2s ease-in;
-  transition: transform 0.2s ease-in-out, opacity 0.2s ease-in;
-}
-
-
-:host(.core-transition.core-opened) {
-  opacity: 1;
-  -webkit-transform: translateZ(0);
-  transform: translateZ(0);
-}
-
-:host(.core-transition-center) {
-  -webkit-transform: scale(0.5);
-  transform: scale(0.5);
-}
-
-:host(.core-transition-top) {
-  -webkit-transform: translateY(-200%);
-  transform: translateY(-200%);
-}
-
-:host(.core-transition-bottom) {
-  -webkit-transform: translateY(200%);
-  transform: translateY(200%);
-}
-
-:host(.core-transition-left) {
-  -webkit-transform: translateX(-200%);
-  transform: translateX(-200%);
-}
-
-:host(.core-transition-right) {
-  -webkit-transform: translateX(200%);
-  transform: translateX(200%);
-}