fixup! Add Persist trait.

Author: valentinewallace

lightning/src/chain/channelmonitor.rs

@@ -2113,7 +2113,6 @@ pub trait Persist<Keys: ChannelKeys>: Send + Sync {
 	/// See [`ChannelMonitor::serialize_for_disk`] for writing out a `ChannelMonitor`,
 	/// and [`ChannelMonitorUpdateErr`] for requirements when returning errors.
 	///
-	/// [`update_id`]: struct.ChannelMonitorUpdate.html#structfield.update_id
 	/// [`ChannelMonitor::serialize_for_disk`]: struct.ChannelMonitor.html#method.serialize_for_disk
 	/// [`ChannelMonitorUpdateErr`]: enum.ChannelMonitorUpdateErr.html
 	fn persist_new_channel(&self, id: OutPoint, data: &ChannelMonitor<Keys>) -> Result<(), ChannelMonitorUpdateErr>;