Remove unused imports from test_logging.
diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index 092bd41..2a5283c 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -26,7 +26,6 @@
import logging.config
import codecs
-import copy
import cPickle
import cStringIO
import gc
@@ -36,7 +35,6 @@
import select
import socket
from SocketServer import ThreadingTCPServer, StreamRequestHandler
-import string
import struct
import sys
import tempfile
@@ -45,7 +43,6 @@
import textwrap
import threading
import time
-import types
import unittest
import warnings
import weakref