Update git submodules
Update git submodules

* Update plugins/replication from branch 'stable-2.16'
  to dd7f52cdc70c5b08781ea4455e189839f1590349
  - DestinationFactory: remove @Singleton annotation
    
    DestinationFactory is already bound as singleton in the module
    and thus does not need to be the @Singleton annotation on the class.
    
    Change-Id: I08eac697239202b01cbac64e8a1629e9499089fb
    
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