Elim cr_button from md-settings

ui/webui/resources/cr_elements/v1_0/cr_button/cr_button.css

Index: ui/webui/resources/cr_elements/v1_0/cr_button/cr_button.css
diff --git a/ui/webui/resources/cr_elements/v1_0/cr_button/cr_button.css b/ui/webui/resources/cr_elements/v1_0/cr_button/cr_button.css
deleted file mode 100644
index 7050cf3247857cb6cbe8b82b8592d907f397896b..0000000000000000000000000000000000000000
--- a/ui/webui/resources/cr_elements/v1_0/cr_button/cr_button.css
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Copyright 2015 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file. */
-
-:host {
-  display: inline-block;
-  vertical-align: middle;
-}
-
-:host([disabled]) {
-  pointer-events: none;
-}
-
-paper-button[toggles][active] {
-  background-color: lightgrey;
-}
-
-paper-button {
-  margin: 0;
-  --paper-button: {
-    min-width: auto;
-  };
-}
-
-:host([lowercase]) paper-button {
-  --paper-button: {
-    min-width: auto;  /* HACK(dbeam): mixins can't be redefined. */
-    text-transform: none;
-  };
-}