Revert "Polymer elements added to third_party/polymer."

third_party/polymer/components/core-style/my-theme.html

-<link rel="import" href="core-style.html">
-
-<script>
-
-  CoreStyle.g.theme = {
-    colorOne: '#abcdef',
-    colorTwo: '#123456',
-    colorThree: '#224433'
-  }
-</script>
-
-<core-style id="main">
-  body {
-    font-family: sans-serif;
-  }
-
-  section {
-    overflow: auto;
-  }
-
-  button {
-    border: 1px solid {{g.theme.colorOne | cycle(-50)}};
-    border-radius: 4px;
-    background-color: {{g.theme.colorOne}};
-    color: {{g.theme.colorTwo}};
-  }
-
-  button:active {
-    border: 1px solid {{g.theme.colorTwo | cycle(50)}};
-    border-radius: 4px;
-    background-color: {{g.theme.colorTwo}};
-    color: {{g.theme.colorOne}};
-  }
-
-  <template repeat="{{item in g.items}}">
-    my-panel:nth-of-type({{item+1}}) {
-      background-color: {{ g.theme.colorThree | cycle(item * -1) }};
-    }
-  </template>
-</core-style>
-
-<core-style id="my-toolbar">
-  :host {
-    border-bottom: 8px solid {{g.theme.colorOne}};
-    color: {{g.theme.colorOne | cycle(100)}};
-    background-color: {{g.theme.colorTwo}};
-  }
-</core-style>
-
-<core-style id="my-panel">
-  :host {
-    box-sizing: border-box;
-    background-color: {{g.theme.colorOne}};
-    border: 8px solid {{g.theme.colorOne | cycle(50)}};
-    color: {{g.theme.colorOne | cycle(-100)}};
-  }
-
-  :host(:nth-of-type(2n + 1)) {
-    background-color: {{g.theme.colorTwo}};
-    border: 8px solid {{g.theme.colorTwo | cycle(-50)}};
-    color: {{g.theme.colorTwo | cycle(100)}}
-  }
-
-</core-style>