Remove the keyboard from the browser demo.

examples/keyboard/keyboard.mojom

Index: examples/keyboard/keyboard.mojom
diff --git a/examples/keyboard/keyboard.mojom b/examples/keyboard/keyboard.mojom
deleted file mode 100644
index 11491c8653ebc78712322a2cead09af7ecac3da0..0000000000000000000000000000000000000000
--- a/examples/keyboard/keyboard.mojom
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2014 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.
-
-module mojo;
-
-[Client=KeyboardClient]
-interface KeyboardService {
-  // Sets the view keyboard events are to go to.
-  SetTarget(uint32 view_id);
-};
-
-interface KeyboardClient {
-  // Invoked when the user interacts with the keyboard. |code| is a key code
-  // |flags| is a bitmask of ui::EventFlags.
-  OnKeyboardEvent(uint32 view_id, int32 code, int32 flags);
-};