Remove wm_flow, browser, nesting_app examples

examples/window_manager/debug_panel_host.mojom

Index: examples/window_manager/debug_panel_host.mojom
diff --git a/examples/window_manager/debug_panel_host.mojom b/examples/window_manager/debug_panel_host.mojom
deleted file mode 100644
index 68073c86a9ea998f8bc45521747f548d0da5bdca..0000000000000000000000000000000000000000
--- a/examples/window_manager/debug_panel_host.mojom
+++ /dev/null
@@ -1,18 +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.examples;
-
-import "mojo/services/navigation/interfaces/navigation.mojom";
-
-interface DebugPanelHost {
-  // Closes the top.
-  CloseTopWindow();
-
-  // Sends a navigate request.
-  NavigateTo(string url);
-
-  // Sets the navigation target.
-  SetNavigationTarget(mojo.Target target);
-};