/**
  * Remove the specified resource from storage.
  *
  * @param  int $id
  * @return Response
  */
 public function destroy($id)
 {
     if (!$id) {
         return Redirect::route('discounts.index')->with('error', 'Please provide discount id');
     }
     $discount = Discounts::find($id);
     if (empty($discount)) {
         return Redirect::route('discounts.index')->with('error', 'Discount not found');
     }
     Discounts::destroy($id);
     return Redirect::route('discounts.index')->with('success', 'Discount deleted successfully');
 }