Revert 281133 "chrome.hid: enrich model with report IDs"

trunk/src/device/hid/hid_collection_info.h

-// 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.
-
-#ifndef DEVICE_HID_HID_COLLECTION_INFO_H_
-#define DEVICE_HID_HID_COLLECTION_INFO_H_
-
-#include <set>
-
-#include "device/hid/hid_usage_and_page.h"
-
-namespace device {
-
-struct HidCollectionInfo {
-  HidCollectionInfo();
-  ~HidCollectionInfo();
-
-  // Collection's usage ID.
-  HidUsageAndPage usage;
-
-  // HID report IDs which belong
-  // to this collection or to its
-  // embedded collections.
-  std::set<int> report_ids;
-};
-
-}  // namespace device"
-
-#endif  // DEVICE_HID_HID_COLLECTION_INFO_H_