Remove default_floating_pool in compute.yaml
Remove default_floating_pool in compute.yaml

This is unused on compute nodes and does not need to be specified.

Further, nova::api is not even included in the compute puppet manifest,
so it had no effect anyway.

Change-Id: I7589bf544fb1ddad3cd371869756cb880c0bac37

bcrochet/tripleo-heat-templates,bcrochet/tripleo-heat-templates,wyg3958/tripleo-heat-templates,wyg3958/tripleo-heat-templates,trozet/opnfv-tht,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,bcrochet/tripleo-heat-templates,trozet/tripleo-heat-templates,trozet/tripleo-heat-templates,openstack/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht,dprince/tripleo-heat-templates