/**
  * Remove the specified instruments from storage (global UI implementation).
  *
  * @param  int  $id
  * @return Response
  */
 public function delete($id)
 {
     //Delete the instrument
     $instrument = Instrument::find($id);
     $instrument->testTypes()->detach();
     $instrument->delete();
     // redirect
     return Redirect::route('instrument.index')->with('message', trans('messages.success-deleting-instrument'));
 }