message: Remove unused `reset` function
diff: @@ -89,15 +89,6 @@ where
  Loopback,
  }
  -impl<P> OutgoingState<P>
  -where
  - P: Dialer,
  -{
  - fn reset() -> Self {
  - OutgoingState::Connecting { failures_so_far: 0 }
  - }
  -}
  -
  /// The result of dialing `SocketAddr`.
  #[derive(Debug)]
  pub(crate) enum DialOutcome<P>
  