CommunityTechTree 2.1 no longer needs nodes to be unhidden

[ZodiusInfuser]

The following can be removed from the cfg in the legacy parts folder:

@TechTree:AFTER[CommunityTechTree]
{
    @RDNode:HAS[#id[experimentalActuators]]
    {
        @hideEmpty = False
    }
    @RDNode:HAS[#id[advActuators]]
    {
        @hideEmpty = False
    }
    @RDNode:HAS[#id[offworldManufacturing]]
    {
        @hideEmpty = False
    }
}