message: remove test subscribers
diff: #include "NovelRunner.h"
  #include "../lib/SDL2/include/SDL.h"
  -void testSubscriber1(const float deltaTime) {
  - std::cout << "testsubscriber 1 with deltatime: " << deltaTime << std::endl;
  -}
  -
  -void testSubscriber2(const float deltaTime) {
  - std::cout << "testsubscriber 2 with deltatime: " << deltaTime << std::endl;
  -}
  -
  namespace NovelRT {
  int NovelRunner::runNovel(NovelRenderingService& novelRenderer) const {
  