Remove Cog1 from the rotation for a while

[Berrik]

Cog1's layout is one of the reasons I am tired of it. That, and it's too easy to depressurize giant portions of the station with little that can be done to fix it. There are not enough places to hide or make mischief, and it's a bad map for certain antag types.

Also goddamn it's been there like every other round for years and years now, I would like to see cog2 become the default. A map being big isn't bad!