Remove warning about collected resource for virtual_server.pp

[hmlth]

thmisc2: Warning: You cannot collect exported resources without storeconfigs being set; the collection will be ignored on line 160 in file /admin/restricted/puppet-hpc/puppet-config/modules/keepalived/manifests/lvs/virtual_server.pp

[hmlth]

Does not seems to be fixable inside the module since this warning seems to be displayed independantly of the actual feature usage.