Remake extension

server/extension/cdb_dataservices_server--0.39.4--0.39.3.sql

@@ -0,0 +1,5 @@
+--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
+-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "ALTER EXTENSION cdb_dataservices_server UPDATE TO '0.39.3'" to load this file. \quit
+
+-- HERE goes your code to upgrade/downgrade

server/extension/cdb_dataservices_server--0.39.4.sql

@@ -399,8 +399,7 @@ BEGIN
     CREATE TYPE cdb_dataservices_server.service_type AS ENUM (
       'isolines',
       'hires_geocoder',
-      'routing',
+      'routing'
-      'observatory'
     );
   END IF;
 END $$;