/**
  * Remove the specified resource from storage.
  *
  * @param  Exercise $exercise
  * @return Response
  */
 public function destroy(Exercise $exercise)
 {
     $exercise->delete();
     return Redirect::route('exercises.index')->with('message', 'Exercise deleted');
 }
 /**
  * Remove the specified resource from storage.
  *
  * @param  \App\Exercise  $exercise
  *
  * @return \Illuminate\Http\Response
  */
 public function destroy(Exercise $exercise)
 {
     $exercise->delete();
     return response('This exercise has deleted.');
 }