Don't initialize game.gametimer in the header file

That's a C++ thing apparently.

desktop_version/src/Game.cpp

@@ -365,6 +365,7 @@ void Game::init(void)
     skipfakeload = false;
 
     ghostsenabled = false;
+    gametimer = 0;
 
     cliplaytest = false;
     playx = 0;