qa/tasks/cephfs/test_nfs.py: flake8 fixes

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/qa/tasks/cephfs/test_nfs.py b/qa/tasks/cephfs/test_nfs.py
index a2ce2382f8272ab12908fa144faf3651f05a9461..ef9326e981cee4acf2a2d91abf6a0f728573451e 100644 (file)
--- a/qa/tasks/cephfs/test_nfs.py
+++ b/qa/tasks/cephfs/test_nfs.py
@@ -1,12 +1,8 @@
-import os
-import json
 import time
-import errno
 import logging
 from io import BytesIO
 
 from tasks.mgr.mgr_test_case import MgrTestCase
-from teuthology.exceptions import CommandFailedError
 
 log = logging.getLogger(__name__)