qos: removed silly tests validating that oslo.versionedobjects works
qos: removed silly tests validating that oslo.versionedobjects works

Those tests just validate that VERSION specified in the object is indeed
used in dict serialization. Well, it's the job of oslo library to make
it happen, and so it's not our job to validate it.

TrivialFix

Change-Id: Ice03fae1268f7d4866f7494c0184d9c30938bd57

eayunstack/neutron,huntxu/neutron,noironetworks/neutron,mahak/neutron,mahak/neutron,huntxu/neutron,openstack/neutron,noironetworks/neutron,mahak/neutron,eayunstack/neutron,openstack/neutron,openstack/neutron