Remove the installed packages in ceilometer-api container
Remove the installed packages in ceilometer-api container

ceilometer-api process is removed already. Kolla use ceilometer-api
container to bootstrap service. Since all the required packages is
installed in ceilometer-base, just remove all the packages in it.

Change-Id: Iddae52d22e54aef5fdd31d77829d7008ee0bc69b

openstack/kolla,nihilifer/kolla,stackforge/kolla,rahulunair/kolla,stackforge/kolla,openstack/kolla,stackforge/kolla,nihilifer/kolla,rahulunair/kolla