Remove unused imports in test modules.
diff --git a/Lib/test/test_file.py b/Lib/test/test_file.py
index a91897e..9b6b435 100644
--- a/Lib/test/test_file.py
+++ b/Lib/test/test_file.py
@@ -12,7 +12,7 @@
 import io
 import _pyio as pyio
 
-from test.test_support import TESTFN, findfile, run_unittest
+from test.test_support import TESTFN, run_unittest
 from UserList import UserList
 
 class AutoFileTests(unittest.TestCase):