Implement RuntimeDebug for GrandpaJustification (paritytech#2254)

bridges/primitives/header-chain/src/justification.rs

@@ -24,7 +24,7 @@ use crate::ChainWithGrandpa;
 use bp_runtime::{BlockNumberOf, Chain, HashOf};
 use codec::{Decode, Encode, MaxEncodedLen};
 use finality_grandpa::voter_set::VoterSet;
-use frame_support::RuntimeDebug;
+use frame_support::{RuntimeDebug, RuntimeDebugNoBound};
 use scale_info::TypeInfo;
 use sp_consensus_grandpa::{AuthorityId, AuthoritySignature, SetId};
 use sp_runtime::{traits::Header as HeaderT, SaturatedConversion};
@@ -38,7 +38,7 @@ use sp_std::{
 ///
 /// This particular proof is used to prove that headers on a bridged chain
 /// (so not our chain) have been finalized correctly.
-#[derive(Encode, Decode, Clone, PartialEq, Eq, TypeInfo)]
+#[derive(Encode, Decode, Clone, PartialEq, Eq, TypeInfo, RuntimeDebugNoBound)]
 pub struct GrandpaJustification<Header: HeaderT> {
 	/// The round (voting period) this justification is valid for.
 	pub round: u64,
@@ -49,25 +49,6 @@ pub struct GrandpaJustification<Header: HeaderT> {
 	pub votes_ancestries: Vec<Header>,
 }
 
-// TODO: remove and use `RuntimeDebug` (https://github.com/paritytech/parity-bridges-common/issues/2136)
-impl<Header: HeaderT> sp_std::fmt::Debug for GrandpaJustification<Header> {
-	fn fmt(&self, fmt: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
-		#[cfg(feature = "std")]
-		{
-			fmt.debug_struct("GrandpaJustification")
-				.field("round", &self.round)
-				.field("commit", &self.commit)
-				.field("votes_ancestries", &self.votes_ancestries)
-				.finish()
-		}
-
-		#[cfg(not(feature = "std"))]
-		{
-			fmt.write_str("<stripped>")
-		}
-	}
-}
-
 impl<H: HeaderT> GrandpaJustification<H> {
 	/// Returns reasonable size of justification using constants from the provided chain.
 	///