Revert "Polymer elements added to third_party/polymer."

third_party/polymer/components/core-icon/core-icon.css

Index: third_party/polymer/components/core-icon/core-icon.css
diff --git a/third_party/polymer/components/core-icon/core-icon.css b/third_party/polymer/components/core-icon/core-icon.css
deleted file mode 100644
index 168a5b5cc295a9abffab9c48d70d19a071b16486..0000000000000000000000000000000000000000
--- a/third_party/polymer/components/core-icon/core-icon.css
+++ /dev/null
@@ -1,16 +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 */
-
-html /deep/ core-icon {
-  display: inline-block;
-  vertical-align: middle;
-  background-repeat: no-repeat;
-  fill: currentcolor;
-  position: relative;
-  height: 24px;
-  width: 24px;
-}