Updated openstack/openstack
Project: openstack/ceilometer  942fb02a85b1cdfd8a1c6570e752fe87d0810c28

Remove Python 2.6 classifier

Ceilometer does not support Python 2.6 anymore starting with Kilo and
might not work correctly with it, so remove the classifier.

Change-Id: I60ee148ff6565b201ee06745bb5d78e47603ef37