      @classmethod
      def _cleanup(cls):
          for sesskey in list(cls.bmc_handlers):
-@@ -872,14 +868,9 @@ class Session(object):
+@@ -872,14 +868,9 @@
                  iv = os.urandom(16)
                  message += iv
                  payloadtocrypt = bytes(payload + _aespad(payload))

             else:  # no confidetiality algorithm
                 message.append(psize & 0xff)
                 message.append(psize >> 8)
@@ -1367,14 +1358,9 @@ class Session(object):
             payload = data[16:16 + psize]
             if encrypted:
                 iv = data[16:32]

 
 import pyghmi.exceptions as exc
 from pyghmi.ipmi.private import constants
@@ -309,10 +309,6 @@
     # can do something like reassign our threading and select modules
     socketchecking = None
 
