Do not generate the html ARA report any more
Do not generate the html ARA report any more

With [1] we no longer need to generate the html report,
so in this patch we change the log collection process
in order to use the new mechanism.

[1] http://lists.openstack.org/pipermail/openstack-dev/2018-March/128902.html

Change-Id: I6d7a9af234b7a8a6e83f9a730ffe1c4fd698786a

openstack/openstack-ansible,stackforge/os-ansible-deployment,stackforge/os-ansible-deployment,openstack/openstack-ansible,bunchc/openstack-ansible,bunchc/openstack-ansible