flake8: fix F401

pydnstest/augwrap.py

@@ -6,7 +6,6 @@ import posixpath
 import logging
 import os
 import collections
-import sys
 
 from augeas import Augeas
 

pydnstest/testserver.py

@@ -13,7 +13,6 @@ import time
 
 import dns.message
 import dns.rdatatype
-import dpkt
 
 from pydnstest import scenario
 

rplint.py

 #!/usr/bin/env python3
 
-from contextlib import suppress
-import glob
 import itertools
 import os
 import sys
-from typing import Any, Callable, Iterable, Iterator, Optional, List, Union, Set
-
-import dns.name
+from typing import Any, Callable, Iterable, Iterator, Optional, List, Union, Set  # noqa
 
 import pydnstest.augwrap
 import pydnstest.matchpart