Updated openstack/openstack
Project: openstack/python-cinderclient  331ddfd37983c07597c56c6cec778f573bf7ae41

Remove Python 2.4 compat shim

It's clear that we aren't testing against Python 2.4 (not
supported by dependencies like six) and no other client
projects have this, so we should drop it.

Change-Id: I14108964c0261d9144ced16cee7101d14ca7e644