Remove unused parameter
Remove unused parameter

The replication_targets parameter doesn't appear to be used anywhere,
let's get rid of it to avoid confusion.

Change-Id: I25fdb9d5e99b3876e6a363e5f967f22f8674b7c6

dhiana/puppet-gerrit,open-switch/infra_puppet-gerrit,open-switch/infra_puppet-gerrit,dhiana/puppet-gerrit,open-switch/infra_puppet-gerrit,dhiana/puppet-gerrit