Removed map_type templatization of build_machine_info_internal.
Removed ns_info templatization of get_namespace_info.
Removed map_type templatization of add_database_tables and add_datacenter_affinities.
Removed map_type templatization of add_single_database_affinities.
Removed map_type templatization of add_single_datacenter_affinities.
Removed some more map_type templatization.