Revert "Add auto map vote cvar" (#27869)

Revert "Add auto map vote cvar (#27496)"

This reverts commit fe35188e2c.

Content.Shared/CCVar/CCVars.cs

@@ -330,12 +330,6 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<bool> DebugCoordinatesAdminOnly =
             CVarDef.Create("game.debug_coordinates_admin_only", true, CVar.SERVER | CVar.REPLICATED);
 
-        /// <summary>
-        ///     Controls if lobby has an automatic map vote.
-        /// </summary>
-        public static readonly CVarDef<bool>
-            GameAutoMapVote = CVarDef.Create("game.lobby_auto_map_vote", true, CVar.ARCHIVE | CVar.SERVERONLY);
-
 #if EXCEPTION_TOLERANCE
         /// <summary>
         ///     Amount of times round start must fail before the server is shut down.