Using memory arena in the game that supports hot reload

JulietApp/main.h

@@ -43,8 +43,6 @@ class JulietApplication : public Juliet::IApplication
     Juliet::HotReloadCode     GameCode         = {};
     Juliet::GraphicsPipeline* GraphicsPipeline = {};
     Juliet::Texture*          DepthBuffer      = {};
-    Juliet::Arena*            GameArena        = nullptr;
-    Juliet::Arena*            GameScratchArena = nullptr;
 
     int   AutoCloseFrameCount = -1;
     bool  Running             = false;