use build-in os.scandir only

Created by: das-g

as we don't support Python < 3.5 anymore

osmaxx/conversion/converters/utils.py

@@ -4,12 +4,7 @@ import subprocess
 import uuid
 import zipfile
 
-# Use the built-in version of scandir if possible, otherwise
-# use the scandir module version
-try:
-    from os import scandir
-except ImportError:
-    from scandir import scandir
+from os import scandir
 
 logger = logging.getLogger(__name__)