TheGameInfo is not properly cleared after a game

[stephanmeesters]

We can see assignments of TheGameInfo:

TheGameInfo = TheLAN->GetMyGame();
TheGameInfo = TheGameSpyGame;
TheGameInfo = TheSkirmishGameInfo;
etc.

However on deleting it does not properly clear TheGameInfo leaving a dangling pointer

delete TheSkirmishGameInfo; TheSkirmishGameInfo = nullptr;
delete TheGameSpyGame; TheGameSpyGame = nullptr;