Use core replacements for std members

[rust-lightning] / lightning / src / ln / features.rs

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index 0b01c41690efd795ebf107f5db4dd80e76783f0c..cbe8cedf1dd1c41d958a46b1c3b8a4357e4186cc 100644 (file)
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -22,8 +22,8 @@
 //! [BOLT #9]: https://github.com/lightningnetwork/lightning-rfc/blob/master/09-features.md
 //! [messages]: crate::ln::msgs
 
-use std::{cmp, fmt};
-use std::marker::PhantomData;
+use core::{cmp, fmt};
+use core::marker::PhantomData;
 
 use bitcoin::bech32;
 use bitcoin::bech32::{Base32Len, FromBase32, ToBase32, u5, WriteBase32};
@@ -646,11 +646,8 @@ impl<T: sealed::PaymentSecret> Features<T> {
        pub(crate) fn requires_payment_secret(&self) -> bool {
                <T as sealed::PaymentSecret>::requires_feature(&self.flags)
        }
-       // Note that we never need to test this since what really matters is the invoice - iff the
-       // invoice provides a payment_secret, we assume that we can use it (ie that the recipient
-       // supports payment_secret).
-       #[allow(dead_code)]
-       pub(crate) fn supports_payment_secret(&self) -> bool {
+       /// Returns whether the `payment_secret` feature is supported.
+       pub fn supports_payment_secret(&self) -> bool {
                <T as sealed::PaymentSecret>::supports_feature(&self.flags)
        }
 }