Remove wm_flow, browser, nesting_app examples

examples/wm_flow/wm/window_frame_host.mojom

Index: examples/wm_flow/wm/window_frame_host.mojom
diff --git a/examples/wm_flow/wm/window_frame_host.mojom b/examples/wm_flow/wm/window_frame_host.mojom
deleted file mode 100644
index 9b09fcd80f49b18eda4dacf1fc5f7a1f83b81f3c..0000000000000000000000000000000000000000
--- a/examples/wm_flow/wm/window_frame_host.mojom
+++ /dev/null
@@ -1,12 +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 examples;
-
-interface WindowFrameHost {
-  ActivateWindow();
-  CloseWindow();
-  SetCapture(bool frame_has_capture);
-  ToggleMaximize();
-};