Round lock for captain and no antag for captain

[unfunnyperson]

Antagonist captains have roundstart
Stuns
Lethals
AA
Some degree of authority
Armor
+Antag Powers

These combined make it trivially easy to steamroll as a traitor captain. It also doesn’t really make sense that nt wouldn’t care to inspect their captains very thoroughly. Remove antag rolls from captains.

I don’t care very much about the round limit.