message: Move the "No synchronization of the linear chain will be done" message
  to the LinearChainSync constructors.
diff: @@ -425,7 +425,6 @@ impl reactor::Reactor for Reactor {
  panic!("should have trusted hash after genesis era")
  }
  }
  - info!("No synchronization of the linear chain will be done.")
  }
  Some(hash) => info!(trusted_hash=%hash, "synchronizing linear chain"),
  }
  