Revert "Adjust python 2.6 jobs for oslo libraries"
Revert "Adjust python 2.6 jobs for oslo libraries"

Further discussion reached the consensus that we should treat all libs the same.

This reverts commit 030694fc10c7befd46b1ab6500896a707dba6c53.

Change-Id: Iecb019db7a05b5ce116a88da37b43e5d06bf1aa0

noorul/os-project-config,citrix-openstack/project-config,citrix-openstack/project-config,coolsvap/project-config,anbangr/osci-project-config,dongwenjuan/project-config,coolsvap/project-config,open-switch/infra_project-config,open-switch/infra_project-config,openstack-infra/project-config,dongwenjuan/project-config,openstack-infra/project-config,Tesora/tesora-project-config,Tesora/tesora-project-config,noorul/os-project-config,anbangr/osci-project-config