Issues #10867: remove old cPickle imports from multiprocessing
diff --git a/Lib/multiprocessing/managers.py b/Lib/multiprocessing/managers.py
index f895c12..78c1fe7 100644
--- a/Lib/multiprocessing/managers.py
+++ b/Lib/multiprocessing/managers.py
@@ -21,16 +21,12 @@
 import queue
 
 from traceback import format_exc
+from pickle import PicklingError
 from multiprocessing import Process, current_process, active_children, Pool, util, connection
 from multiprocessing.process import AuthenticationString
 from multiprocessing.forking import exit, Popen, assert_spawning, ForkingPickler
 from multiprocessing.util import Finalize, info
 
-try:
-    from cPickle import PicklingError
-except ImportError:
-    from pickle import PicklingError
-
 #
 # Register some things for pickling
 #