Deprecated django.utils.importlib

This was a shim for pre-Python 2.7 support.

django/contrib/staticfiles/storage.py

@@ -1,5 +1,6 @@
 from __future__ import unicode_literals
 import hashlib
+from importlib import import_module
 import os
 import posixpath
 import re
@@ -18,7 +19,6 @@ from django.core.files.storage import FileSystemStorage, get_storage_class
 from django.utils.datastructures import SortedDict
 from django.utils.encoding import force_bytes, force_text
 from django.utils.functional import LazyObject
-from django.utils.importlib import import_module
 from django.utils._os import upath
 
 from django.contrib.staticfiles.utils import check_settings, matches_patterns