Remove spy/arcfiend only rounds

[TheMaskedMan2]

For people who mention the objectives being boring. I really really feel like a lot of people should be reminded that objectives are not a rule or required at all. It's more just a random idea. I think there's a lot of confusion, since a lot of other servers pretty much will ban antags if they kill someone not on objective list. So spies can wind up thinking they can't actually use most of their stuff and only follow the contracts.

As for agent cards, that'd be nice. (Random agent card thought: It should make the npc syndi-drones friendly to you.)