Deprecated impl_qpid
Deprecated impl_qpid

Due to the Qpid driver has been deprecated and will be removed
during the 'M' development cycle, add warning message here.

Change-Id: I54db9142b5165116e3ae944e2241f209f8cd9d40
Closes-Bug: 1471899

openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,saeki-masaki/openstack-manuals,potsmaster/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,kairoaraujo/openstack-manuals,Akasurde/openstack-manuals,potsmaster/openstack-manuals,kairoaraujo/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,saeki-masaki/openstack-manuals,Akasurde/openstack-manuals