Clean up: Omit default constructor in RemoveableDeviceNotificationsLinux::MountPointInfo struct.

chrome/browser/system_monitor/removable_device_notifications_linux.cc

 // Copyright (c) 2012 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.
 
 // RemovableDeviceNotificationsLinux implementation.
 
 #include "chrome/browser/system_monitor/removable_device_notifications_linux.h"
 
 #include <libudev.h>
 #include <mntent.h>
@@ skipping 213 matching lines @@
                                                         kDiskDeviceTypeKey);
       value = udev_device_get_sysattr_value(parent_device, kRemovableSysAttr);
     }
     *removable = (value && atoi(value) == 1);
   }
   RecordGetDeviceInfoResult(true);
 }
 
 }  // namespace
 
-RemovableDeviceNotificationsLinux::MountPointInfo::MountPointInfo() {
-}
-
 RemovableDeviceNotificationsLinux::RemovableDeviceNotificationsLinux(
     const FilePath& path)
     : initialized_(false),
       mtab_path_(path),
       get_device_info_func_(&GetDeviceInfo) {
   DCHECK(!g_removable_device_notifications_linux);
   g_removable_device_notifications_linux = this;
 }
 
 RemovableDeviceNotificationsLinux::RemovableDeviceNotificationsLinux(
@@ skipping 214 matching lines @@
   mount_info_map_[mount_point] = mount_point_info;
   mount_priority_map_[mount_device][mount_point] = removable;
 
   if (removable) {
     SystemMonitor::Get()->ProcessRemovableStorageAttached(device_id, name,
                                                           mount_point.value());
   }
 }
 
 }  // namespace chrome