Remove customlevelstatsloaded from Game

This boolean is assigned, and it is checked... but it's never assigned
to true, thus making it useless. I also checked 2.2 source and the same
thing happens there; to prevent any confusion, I'm removing this.

desktop_version/src/Game.cpp

@@ -412,8 +412,6 @@ void Game::clearcustomlevelstats(void)
 {
     //just clearing the array
     customlevelstats.clear();
-
-    customlevelstatsloaded=false; //To ensure we don't load it where it isn't needed
 }
 
 
@@ -475,11 +473,6 @@ void Game::updatecustomlevelstats(std::string clevel, int cscore)
 
 void Game::loadcustomlevelstats(void)
 {
-    if(customlevelstatsloaded)
-    {
-        return;
-    }
-
     tinyxml2::XMLDocument doc;
     if (!FILESYSTEM_loadTiXml2Document("saves/levelstats.vvv", doc))
     {

desktop_version/src/Game.h

@@ -416,7 +416,6 @@ public:
     void updatecustomlevelstats(std::string clevel, int cscore);
 
     std::vector<CustomLevelStat> customlevelstats;
-    bool customlevelstatsloaded;
 
 
     std::vector<SDL_GameControllerButton> controllerButton_map;