Remove //device/devices_app.

device/devices_app/usb/public/interfaces/device_manager.mojom

-// 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.
-
-module device.usb;
-
-import "device.mojom";
-
-struct DeviceFilter {
-  bool has_vendor_id;
-  uint16 vendor_id;
-
-  bool has_product_id;
-  uint16 product_id;
-
-  bool has_class_code;
-  uint8 class_code;
-
-  bool has_subclass_code;
-  uint8 subclass_code;
-
-  bool has_protocol_code;
-  uint8 protocol_code;
-};
-
-struct EnumerationOptions {
-  array<DeviceFilter>? filters;
-};
-
-struct DeviceChangeNotification {
-  array<DeviceInfo> devices_added;
-  array<DeviceInfo> devices_removed;
-};
-
-interface DeviceManager {
-  // Retrieves information about all devices available to the DeviceManager
-  // implementation.
-  GetDevices(EnumerationOptions? options) => (array<DeviceInfo> results);
-
-  // Retrieves information about changes to the set of devices available to the
-  // DeviceManager since the last call to this method. A device that is added
-  // and removed between calls will not be included.
-  GetDeviceChanges() => (DeviceChangeNotification changes);
-
-  // Requests a device by guid.
-  GetDevice(string guid, Device& device_request);
-};