[not for review] sync: Don't use group_restriction from ApplyUpdatesCommand.

sync/syncable/syncable.h

Index: sync/syncable/syncable.h
diff --git a/sync/syncable/syncable.h b/sync/syncable/syncable.h
index 5dc323f10089c783531fc52d80105536cb82241a..479dea845146f329bf579335641b99e3b3817167 100644
--- a/sync/syncable/syncable.h
+++ b/sync/syncable/syncable.h
@@ -1003,12 +1003,6 @@ class Directory {
   void GetUnsyncedMetaHandles(BaseTransaction* trans,
                               UnsyncedMetaHandles* result);
 
-  // Returns all server types with unapplied updates.  A subset of
-  // those types can then be passed into
-  // GetUnappliedUpdateMetaHandles() below.
-  FullModelTypeSet GetServerTypesWithUnappliedUpdates(
-      BaseTransaction* trans) const;
-
   // Get all the metahandles for unapplied updates for a given set of
   // server types.
   void GetUnappliedUpdateMetaHandles(BaseTransaction* trans,