private static void DeleteFieldsSpecifiedInFile(ClientContext context, string file)
{
Log.Info("Deleting all fields with the same group as the ones in the file " + file);
var siteColumnPersister = new FilePersistanceProvider<List<ShField>>(file);
var siteColumnManager = new FieldManager(context, siteColumnPersister.Load());
siteColumnManager.DeleteAllCustomFields();
}
