Remove state migration from westend runtime.

runtime/westend/Cargo.toml

@@ -65,7 +65,6 @@ pallet-session = { git = "https://github.com/paritytech/substrate", branch = "ma
 pallet-society = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-staking = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-staking-reward-curve = { package = "pallet-staking-reward-curve", git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-state-trie-migration = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-sudo = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -99,7 +98,6 @@ xcm-builder = { package = "xcm-builder", path = "../../xcm/xcm-builder", default
 hex-literal = "0.3.4"
 tiny-keccak = { version = "2.0.2", features = ["keccak"] }
 keyring = { package = "sp-keyring", git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", branch = "master" }
 serde_json = "1.0.81"
 remote-externalities = { git = "https://github.com/paritytech/substrate", branch = "master", package = "frame-remote-externalities" }
 tokio = { version = "1.24.2", features = ["macros"] }
@@ -156,7 +154,6 @@ std = [
 	"pallet-session/std",
 	"pallet-society/std",
 	"pallet-staking/std",
-	"pallet-state-trie-migration/std",
 	"pallet-sudo/std",
 	"pallet-timestamp/std",
 	"pallet-treasury/std",
@@ -257,7 +254,6 @@ try-runtime = [
 	"pallet-session/try-runtime",
 	"pallet-society/try-runtime",
 	"pallet-staking/try-runtime",
-	"pallet-state-trie-migration/try-runtime",
 	"pallet-sudo/try-runtime",
 	"pallet-timestamp/try-runtime",
 	"pallet-treasury/try-runtime",

runtime/westend/src/lib.rs

@@ -1097,19 +1097,6 @@ parameter_types! {
 	pub const MigrationMaxKeyLen: u32 = 512;
 }
 
-impl pallet_state_trie_migration::Config for Runtime {
-	type RuntimeEvent = RuntimeEvent;
-	type Currency = Balances;
-	type SignedDepositPerItem = MigrationSignedDepositPerItem;
-	type SignedDepositBase = MigrationSignedDepositBase;
-	type ControlOrigin = EnsureRoot<AccountId>;
-	type SignedFilter = frame_support::traits::NeverEnsureOrigin<AccountId>;
-
-	// Use same weights as substrate ones.
-	type WeightInfo = pallet_state_trie_migration::weights::SubstrateWeight<Runtime>;
-	type MaxKeyLen = MigrationMaxKeyLen;
-}
-
 construct_runtime! {
 	pub enum Runtime where
 		Block = Block,
@@ -1178,9 +1165,6 @@ construct_runtime! {
 		// Fast unstake pallet: extension to staking.
 		FastUnstake: pallet_fast_unstake = 30,
 
-		// State trie migration pallet, only temporary.
-		StateTrieMigration: pallet_state_trie_migration = 35,
-
 		// Parachains pallets. Start indices at 40 to leave room.
 		ParachainsOrigin: parachains_origin::{Pallet, Origin} = 41,
 		Configuration: parachains_configuration::{Pallet, Call, Storage, Config<T>} = 42,
@@ -1243,7 +1227,6 @@ impl Get<&'static str> for StakingMigrationV11OldPallet {
 ///
 /// Should be cleared after every release.
 pub type Migrations = (
-	init_state_migration::InitMigrate,
 	// "Use 2D weights in XCM v3" <https://github.com/paritytech/polkadot/pull/6134>
 	pallet_xcm::migration::v1::MigrateToV1<Runtime>,
 	parachains_ump::migration::v1::MigrateToV1<Runtime>,
@@ -1907,46 +1890,3 @@ mod remote_tests {
 		ext.execute_with(|| Runtime::on_runtime_upgrade(UpgradeCheckSelect::PreAndPost));
 	}
 }
-
-mod init_state_migration {
-	use super::Runtime;
-	use frame_support::traits::OnRuntimeUpgrade;
-	use pallet_state_trie_migration::{AutoLimits, MigrationLimits, MigrationProcess};
-	#[cfg(not(feature = "std"))]
-	use sp_std::prelude::*;
-
-	/// Initialize an automatic migration process.
-	pub struct InitMigrate;
-	impl OnRuntimeUpgrade for InitMigrate {
-		#[cfg(feature = "try-runtime")]
-		fn pre_upgrade() -> Result<Vec<u8>, &'static str> {
-			frame_support::ensure!(
-				AutoLimits::<Runtime>::get().is_none(),
-				"Automigration already started."
-			);
-			Ok(Default::default())
-		}
-
-		fn on_runtime_upgrade() -> frame_support::weights::Weight {
-			if MigrationProcess::<Runtime>::get() == Default::default() &&
-				AutoLimits::<Runtime>::get().is_none()
-			{
-				AutoLimits::<Runtime>::put(Some(MigrationLimits { item: 160, size: 204800 }));
-				log::info!("Automatic trie migration started.");
-				<Runtime as frame_system::Config>::DbWeight::get().reads_writes(2, 1)
-			} else {
-				log::info!("Automatic trie migration not started.");
-				<Runtime as frame_system::Config>::DbWeight::get().reads(2)
-			}
-		}
-
-		#[cfg(feature = "try-runtime")]
-		fn post_upgrade(_state: Vec<u8>) -> Result<(), &'static str> {
-			frame_support::ensure!(
-				AutoLimits::<Runtime>::get().is_some(),
-				"Automigration started."
-			);
-			Ok(())
-		}
-	}
-}