修改禁止删除的方法，增加提示

app/Admin/Controllers/OrderController.php

@@ -129,11 +129,8 @@ class OrderController extends AdminController
             $form->mobile('mobile');
             $form->text('name')->width(2);
             $form->select('status')->options(OrderStatus::array())->width(2);
-        });
+        })->deleting(function (Form $form) {
+			return $form->response()->error('禁止删除');
+		});
     }
-
-	public function destroy($id)
-	{
-		return false;
-	}
 }