refactoring

kvmd/validators/basic.py

@@ -113,7 +113,7 @@ def valid_string_list(
     if not isinstance(arg, (list, tuple)):
         arg = check_not_none_string(arg, name)
         arg = list(filter(None, re.split(delim, arg)))
-    if subval is not None:
+
     try:
         arg = list(map(subval, arg))
     except Exception: