remove code only needed for older PostgreSQL/PostGIS versions

lib-sql/tiger_import_finish.sql

@@ -8,9 +8,7 @@
 --index only on parent_place_id
 CREATE INDEX IF NOT EXISTS idx_location_property_tiger_parent_place_id_imp
   ON location_property_tiger_import (parent_place_id)
-{% if postgres.has_index_non_key_column %}
   INCLUDE (startnumber, endnumber, step)
-{% endif %}
   {{db.tablespace.aux_index}};
 CREATE UNIQUE INDEX IF NOT EXISTS idx_location_property_tiger_place_id_imp
   ON location_property_tiger_import (place_id) {{db.tablespace.aux_index}};