Decouple swift-proxy from ceilometer packages

Decouple swift-proxy from ceilometer packages

This patch updates the swift proxy so that it only depends
on ceilometer if the ceilometer_api_enabled all-nodes-data hiera
setting has been set.

Also removes a parameter dependency where the
tripleo::profile::base::swift::proxy class was referencing
a puppet-ceilometer value from hiera (which can
also cause ceilometer dependencies).

Depends-On: Ief5399d7ea4d26e96ce54903a69d660fa4fe3ce9

Change-Id: I8d9f69f5e9160543b372bd9886800f16f625fdc6
Closes-bug: #1648736