Drop compat for pre-0.9 API

Closes #17133734.

sobjects.py

@@ -29,8 +29,6 @@ from hashlib import md5
 from uuid import uuid4
 from itertools import imap
 
-from logilab.common.deprecation import deprecated
-
 from cubicweb import dataimport
 from cubicweb.dataimport.importer import (
     ExtEntity,
@@ -224,18 +222,3 @@ def import_skos_extentities(cnx, entities, import_log,
     store.commit()
     store.finish()
     return res
-
-
-@deprecated('[skos 0.9] use lcsv_extentities then import_skos_extentities instead')
-def _skos_import_lcsv(cnx, stream, import_log, scheme_uri, delimiter,
-                      encoding, language_code=None, **kwargs):
-    """Import SKOS from LCSV stream or URL (by transforming it to RDF first)."""
-    entities = lcsv_extentities(stream, scheme_uri, delimiter, encoding, language_code)
-    return import_skos_extentities(cnx, entities, import_log, extid_as_cwuri=False, **kwargs)
-
-
-@deprecated('[skos 0.9] use rdf_extentities then import_skos_extentities instead')
-def _skos_import_rdf(cnx, stream_or_url, import_log, rdf_format=None, **kwargs):
-    """Import SKOS from RDF stream or URL."""
-    entities = rdf_extentities(stream_or_url, rdf_format)
-    return import_skos_extentities(cnx, entities, import_log, **kwargs)