remove all references to a module path

No longer used now that legacy tokenizer is gone.

src/nominatim_db/cli.py

@@ -111,8 +111,7 @@ class CommandlineParser:
 
         args.config = Configuration(args.project_dir,
                                     environ=kwargs.get('environ', os.environ))
-        args.config.set_libdirs(module=kwargs['module_dir'],
-                                osm2pgsql=kwargs['osm2pgsql_path'])
+        args.config.set_libdirs(osm2pgsql=kwargs['osm2pgsql_path'])
 
         log = logging.getLogger()
         log.warning('Using project directory: %s', str(args.project_dir))