Kill the light client, CHTs and change tries. (#10080)

* Remove light client, change tries and CHTs

* Update tests

* fmt

* Restore changes_root

* Fixed benches

* Cargo fmt

* fmt

* fmt

substrate/primitives/consensus/aura/src/digests.rs

@@ -25,7 +25,6 @@ use crate::AURA_ENGINE_ID;
 use codec::{Codec, Encode};
 use sp_consensus_slots::Slot;
 use sp_runtime::generic::DigestItem;
-use sp_std::fmt::Debug;
 
 /// A digest item which is usable with aura consensus.
 pub trait CompatibleDigestItem<Signature>: Sized {
@@ -42,10 +41,9 @@ pub trait CompatibleDigestItem<Signature>: Sized {
 	fn as_aura_pre_digest(&self) -> Option<Slot>;
 }
 
-impl<Signature, Hash> CompatibleDigestItem<Signature> for DigestItem<Hash>
+impl<Signature> CompatibleDigestItem<Signature> for DigestItem
 where
 	Signature: Codec,
-	Hash: Debug + Send + Sync + Eq + Clone + Codec + 'static,
 {
 	fn aura_seal(signature: Signature) -> Self {
 		DigestItem::Seal(AURA_ENGINE_ID, signature.encode())

substrate/primitives/consensus/babe/src/digests.rs

@@ -21,7 +21,7 @@ use super::{
 	AllowedSlots, AuthorityId, AuthorityIndex, AuthoritySignature, BabeAuthorityWeight,
 	BabeEpochConfiguration, Slot, BABE_ENGINE_ID,
 };
-use codec::{Codec, Decode, Encode, MaxEncodedLen};
+use codec::{Decode, Encode, MaxEncodedLen};
 use sp_runtime::{DigestItem, RuntimeDebug};
 use sp_std::vec::Vec;
 
@@ -177,10 +177,7 @@ pub trait CompatibleDigestItem: Sized {
 	fn as_next_config_descriptor(&self) -> Option<NextConfigDescriptor>;
 }
 
-impl<Hash> CompatibleDigestItem for DigestItem<Hash>
-where
-	Hash: Send + Sync + Eq + Clone + Codec + 'static,
-{
+impl CompatibleDigestItem for DigestItem {
 	fn babe_pre_digest(digest: PreDigest) -> Self {
 		DigestItem::PreRuntime(BABE_ENGINE_ID, digest.encode())
 	}

substrate/primitives/consensus/common/src/lib.rs

@@ -26,7 +26,8 @@ use std::{sync::Arc, time::Duration};
 use futures::prelude::*;
 use sp_runtime::{
 	generic::BlockId,
-	traits::{Block as BlockT, DigestFor, HashFor, NumberFor},
+	traits::{Block as BlockT, HashFor},
+	Digest,
 };
 use sp_state_machine::StorageProof;
 
@@ -111,8 +112,7 @@ pub struct Proposal<Block: BlockT, Transaction, Proof> {
 	/// Proof that was recorded while building the block.
 	pub proof: Proof,
 	/// The storage changes while building this block.
-	pub storage_changes:
-		sp_state_machine::StorageChanges<Transaction, HashFor<Block>, NumberFor<Block>>,
+	pub storage_changes: sp_state_machine::StorageChanges<Transaction, HashFor<Block>>,
 }
 
 /// Error that is returned when [`ProofRecording`] requested to record a proof,
@@ -224,7 +224,7 @@ pub trait Proposer<B: BlockT> {
 	fn propose(
 		self,
 		inherent_data: InherentData,
-		inherent_digests: DigestFor<B>,
+		inherent_digests: Digest,
 		max_duration: Duration,
 		block_size_limit: Option<usize>,
 	) -> Self::Proposal;