Fix unused variable introduced in my changes in bdbf5666a9d693b9bf1

The original was written by Tamas, but I made one small tweak and
broke the warning-free-ness of it.

diff --git a/src/ln/onion_utils.rs b/src/ln/onion_utils.rs
index 11b279073447e4118c06a96eb8912431ed47ee18..6ca8811e444aa5b3fcca7546e47a486e07f601f7 100644 (file)
--- a/src/ln/onion_utils.rs
+++ b/src/ln/onion_utils.rs
@@ -114,7 +114,7 @@ pub(super) fn build_onion_payloads(route: &Route, starting_htlc_offset: u32) ->
        let mut last_short_channel_id = 0;
        let mut res: Vec<msgs::OnionHopData> = Vec::with_capacity(route.hops.len());
 
-       for (idx, hop) in route.hops.iter().enumerate().rev() {
+       for hop in route.hops.iter().rev() {
                // First hop gets special values so that it can check, on receipt, that everything is
                // exactly as it should be (and the next hop isn't trying to probe to find out if we're
                // the intended recipient).