Remove blank lines following doc comments

Author: arik-so

lightning/src/ln/channelmanager.rs

@@ -711,7 +711,6 @@ impl Into<u16> for FailureCode {
 /// immediately (ie with no further calls on it made). Thus, this step happens inside a
 /// peer_state lock. We then return the set of things that need to be done outside the lock in
 /// this struct and call handle_error!() on it.
-
 struct MsgHandleErrInternal {
 	err: msgs::LightningError,
 	closes_channel: bool,

lightning/src/onion_message/messenger.rs

@@ -210,7 +210,7 @@ for OnionMessenger<ES, NS, L, NL, MR, OMH, APH, DRH, CMH> where
 ///     &offers_message_handler, &async_payments_message_handler, &dns_resolution_message_handler,
 ///     &custom_message_handler,
 /// );
-
+///
 /// # #[derive(Debug)]
 /// # struct YourCustomMessage {}
 /// impl Writeable for YourCustomMessage {