Merge pull request #1849 from abarth/rm_edges

Remove unused material edge definition

packages/flutter/lib/material.dart

@@ -20,7 +20,6 @@ export 'src/material/drawer_divider.dart';
 export 'src/material/drawer_header.dart';
 export 'src/material/drawer_item.dart';
 export 'src/material/dropdown.dart';
-export 'src/material/edges.dart';
 export 'src/material/flat_button.dart';
 export 'src/material/floating_action_button.dart';
 export 'src/material/icon.dart';

packages/flutter/lib/src/material/edges.dart

-// 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.
-
-enum MaterialEdge { canvas, card, circle }
-
-// This map gives the border radii for each type of material.
-const Map<MaterialEdge, double> edges = const <MaterialEdge, double>{
-  MaterialEdge.canvas: null,
-  MaterialEdge.card: 2.0,
-  MaterialEdge.circle: null,
-};