public function destroy(Performance $performance)
 {
     if (is_integer($performance)) {
         $performance = Performance::find($performance);
     }
     $performance->delete();
     Flash::success('Performance has been created Deleted!');
     return Redirect::back();
 }
 public function destroy($performance)
 {
     $performance = Performance::find($performance);
     $performance->delete();
     return response(['data' => true, 'status' => 'success', 'message' => 'successfully deleted']);
 }