Prevent OnObjectBeingRemovedFromScene from sending a SyncMsgRemovedObject when the object is not found in the sync cache. This was causing every actor to echo the remove message back to every actor after is processed the delete. Checking LocallyGeneratedEvent signature could have caught this too but this solution is more resilient to other timing issues
Merge branch 'master' of git://github.com/intelvwi/DSG