function remove_unwanted($row, $remove)
 {
     $this->to_remove = $remove;
     if (in_array($remove, $row->Cells)) {
         $width = $remove->width;
         $divider = $remove->row_divider;
         $index = array_search($remove, $row->Cells);
         $spacers = WPDD_Utils::create_cells($width, $divider);
         array_splice($row->Cells, $index, 1, $spacers);
     }
     return $row;
 }