/**
  * Deletes a Marcsubfield
  * 
  * @param  $id the id of the Marcsubfield object to delete
  */
 public function destroyMarcsubfield($id, $id_edited_marcfield)
 {
     if (Marcfield::findOrFail($id_edited_marcfield)->marcsubfields->count() <= 1) {
         flash()->error('A Marcfield must have at least one marcsubfield.');
         return redirect('admin/marcfields/' . $id_edited_marcfield . '/edit');
     }
     $marcsubfield = Marcsubfield::findOrFail($id);
     $marcsubfield->delete();
     flash()->success('Marcsubfield removed with success.');
     return redirect('admin/marcfields/' . $id_edited_marcfield . '/edit');
 }