Remove unused constants and functions from Files app.

ui/file_manager/file_manager/common/js/volume_manager_common.js

Index: ui/file_manager/file_manager/common/js/volume_manager_common.js
diff --git a/ui/file_manager/file_manager/common/js/volume_manager_common.js b/ui/file_manager/file_manager/common/js/volume_manager_common.js
index f4210ade26782ad30005b52834ac44bde41565dc..7dfc38c36a2910d9636ba460be9eaf6148b84f3d 100644
--- a/ui/file_manager/file_manager/common/js/volume_manager_common.js
+++ b/ui/file_manager/file_manager/common/js/volume_manager_common.js
@@ -26,9 +26,6 @@ VolumeManagerCommon.RootType = {
   // Root for a drive volume.
   DRIVE: 'drive',
 
-  // Root for a privet storage volume.
-  CLOUD_DEVICE: 'cloud_device',
-
   // Root for a MTP volume.
   MTP: 'mtp',
 
@@ -123,7 +120,6 @@ VolumeManagerCommon.VolumeType = {
   DOWNLOADS: 'downloads',
   REMOVABLE: 'removable',
   ARCHIVE: 'archive',
-  CLOUD_DEVICE: 'cloud_device',
   MTP: 'mtp',
   PROVIDED: 'provided'
 };
@@ -161,8 +157,6 @@ VolumeManagerCommon.getVolumeTypeFromRootType = function(rootType) {
     case VolumeManagerCommon.RootType.DRIVE_SHARED_WITH_ME:
     case VolumeManagerCommon.RootType.DRIVE_RECENT:
       return VolumeManagerCommon.VolumeType.DRIVE;
-    case VolumeManagerCommon.RootType.CLOUD_DEVICE:
-      return VolumeManagerCommon.VolumeType.CLOUD_DEVICE;
     case VolumeManagerCommon.RootType.MTP:
       return VolumeManagerCommon.VolumeType.MTP;
     case VolumeManagerCommon.RootType.PROVIDED: