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/api/proc-macro/src/impl_runtime_apis.rs

@@ -288,10 +288,6 @@ fn generate_runtime_api_base_structures() -> Result<TokenStream> {
 			fn into_storage_changes(
 				&self,
 				backend: &Self::StateBackend,
-				changes_trie_state: Option<&#crate_::ChangesTrieState<
-					#crate_::HashFor<Block>,
-					#crate_::NumberFor<Block>,
-				>>,
 				parent_hash: Block::Hash,
 			) -> std::result::Result<
 				#crate_::StorageChanges<C::StateBackend, Block>,
@@ -299,7 +295,6 @@ fn generate_runtime_api_base_structures() -> Result<TokenStream> {
 			> where Self: Sized {
 				self.changes.replace(Default::default()).into_storage_changes(
 					backend,
-					changes_trie_state,
 					parent_hash,
 					self.storage_transaction_cache.replace(Default::default()),
 				)

substrate/primitives/api/proc-macro/src/mock_impl_runtime_apis.rs

@@ -116,10 +116,6 @@ fn implement_common_api_traits(block_type: TypePath, self_ty: Type) -> Result<To
 			fn into_storage_changes(
 				&self,
 				_: &Self::StateBackend,
-				_: Option<&#crate_::ChangesTrieState<
-					#crate_::HashFor<#block_type>,
-					#crate_::NumberFor<#block_type>,
-				>>,
 				_: <#block_type as #crate_::BlockT>::Hash,
 			) -> std::result::Result<
 				#crate_::StorageChanges<Self::StateBackend, #block_type>,

substrate/primitives/api/src/lib.rs

@@ -97,7 +97,7 @@ pub use sp_runtime::{
 #[doc(hidden)]
 #[cfg(feature = "std")]
 pub use sp_state_machine::{
-	Backend as StateBackend, ChangesTrieState, InMemoryBackend, OverlayedChanges, StorageProof,
+	Backend as StateBackend, InMemoryBackend, OverlayedChanges, StorageProof,
 };
 #[cfg(feature = "std")]
 use sp_std::result;
@@ -394,14 +394,12 @@ pub type ProofRecorder<B> = sp_state_machine::ProofRecorder<<B as BlockT>::Hash>
 pub type StorageTransactionCache<Block, Backend> = sp_state_machine::StorageTransactionCache<
 	<Backend as StateBackend<HashFor<Block>>>::Transaction,
 	HashFor<Block>,
-	NumberFor<Block>,
 >;
 
 #[cfg(feature = "std")]
 pub type StorageChanges<SBackend, Block> = sp_state_machine::StorageChanges<
 	<SBackend as StateBackend<HashFor<Block>>>::Transaction,
 	HashFor<Block>,
-	NumberFor<Block>,
 >;
 
 /// Extract the state backend type for a type that implements `ProvideRuntimeApi`.
@@ -514,7 +512,6 @@ pub trait ApiExt<Block: BlockT> {
 	fn into_storage_changes(
 		&self,
 		backend: &Self::StateBackend,
-		changes_trie_state: Option<&ChangesTrieState<HashFor<Block>, NumberFor<Block>>>,
 		parent_hash: Block::Hash,
 	) -> Result<StorageChanges<Self::StateBackend, Block>, String>
 	where

substrate/primitives/api/test/tests/runtime_calls.rs

@@ -211,7 +211,7 @@ fn record_proof_works() {
 		None,
 		8,
 	);
-	execution_proof_check_on_trie_backend::<_, u64, _, _>(
+	execution_proof_check_on_trie_backend(
 		&backend,
 		&mut overlay,
 		&executor,