[Westend] Remove StateTrieMigration pallet - V0→V1 migration complete

cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml

@@ -65,7 +65,6 @@ pallet-staking = { workspace = true }
 pallet-staking-async = { workspace = true }
 pallet-staking-async-rc-client = { workspace = true }
 pallet-staking-runtime-api = { workspace = true }
-pallet-state-trie-migration = { workspace = true }
 pallet-sudo = { workspace = true }
 pallet-timestamp = { workspace = true }
 pallet-transaction-payment = { workspace = true }
@@ -194,7 +193,6 @@ runtime-benchmarks = [
 	"pallet-staking-async-rc-client/runtime-benchmarks",
 	"pallet-staking-async/runtime-benchmarks",
 	"pallet-staking/runtime-benchmarks",
-	"pallet-state-trie-migration/runtime-benchmarks",
 	"pallet-sudo/runtime-benchmarks",
 	"pallet-timestamp/runtime-benchmarks",
 	"pallet-transaction-payment/runtime-benchmarks",
@@ -268,7 +266,6 @@ try-runtime = [
 	"pallet-staking-async-rc-client/try-runtime",
 	"pallet-staking-async/try-runtime",
 	"pallet-staking/try-runtime",
-	"pallet-state-trie-migration/try-runtime",
 	"pallet-sudo/try-runtime",
 	"pallet-timestamp/try-runtime",
 	"pallet-transaction-payment/try-runtime",
@@ -352,7 +349,6 @@ std = [
 	"pallet-staking-async/std",
 	"pallet-staking-runtime-api/std",
 	"pallet-staking/std",
-	"pallet-state-trie-migration/std",
 	"pallet-sudo/std",
 	"pallet-timestamp/std",
 	"pallet-transaction-payment-rpc-runtime-api/std",

cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs

@@ -1220,6 +1220,7 @@ impl pallet_revive::Config for Runtime {
 parameter_types! {
 	pub MbmServiceWeight: Weight = Perbill::from_percent(80) * RuntimeBlockWeights::get().max_block;
 	pub FastUnstakeName: &'static str = "FastUnstake";
+	pub StateTrieMigrationName: &'static str = "StateTrieMigration";
 }
 
 impl pallet_migrations::Config for Runtime {
@@ -1373,8 +1374,6 @@ construct_runtime!(
 
 		AssetRewards: pallet_asset_rewards = 61,
 
-		StateTrieMigration: pallet_state_trie_migration = 70,
-
 		// Staking.
 		Staking: pallet_staking_async = 80,
 		NominationPools: pallet_nomination_pools = 81,
@@ -1492,6 +1491,11 @@ pub type Migrations = (
 		FastUnstakeName,
 		<Runtime as frame_system::Config>::DbWeight,
 	>,
+	// Remove StateTrieMigration pallet - migration complete
+	frame_support::migrations::RemovePallet<
+		StateTrieMigrationName,
+		<Runtime as frame_system::Config>::DbWeight,
+	>,
 	// permanent
 	pallet_xcm::migration::MigrateToLatestXcmVersion<Runtime>,
 	cumulus_pallet_aura_ext::migration::MigrateV0ToV1<Runtime>,
@@ -2661,47 +2665,6 @@ cumulus_pallet_parachain_system::register_validate_block! {
 	BlockExecutor = cumulus_pallet_aura_ext::BlockExecutor::<Runtime, Executive>,
 }
 
-parameter_types! {
-	// The deposit configuration for the singed migration. Specially if you want to allow any signed account to do the migration (see `SignedFilter`, these deposits should be high)
-	pub const MigrationSignedDepositPerItem: Balance = CENTS;
-	pub const MigrationSignedDepositBase: Balance = 2_000 * CENTS;
-	pub const MigrationMaxKeyLen: u32 = 512;
-}
-
-impl pallet_state_trie_migration::Config for Runtime {
-	type RuntimeEvent = RuntimeEvent;
-	type Currency = Balances;
-	type RuntimeHoldReason = RuntimeHoldReason;
-	type SignedDepositPerItem = MigrationSignedDepositPerItem;
-	type SignedDepositBase = MigrationSignedDepositBase;
-	// An origin that can control the whole pallet: should be Root, or a part of your council.
-	type ControlOrigin = frame_system::EnsureSignedBy<RootMigController, AccountId>;
-	// specific account for the migration, can trigger the signed migrations.
-	type SignedFilter = frame_system::EnsureSignedBy<MigController, AccountId>;
-
-	// Replace this with weight based on your runtime.
-	type WeightInfo = pallet_state_trie_migration::weights::SubstrateWeight<Runtime>;
-
-	type MaxKeyLen = MigrationMaxKeyLen;
-}
-
-frame_support::ord_parameter_types! {
-	pub const MigController: AccountId = AccountId::from(hex_literal::hex!("8458ed39dc4b6f6c7255f7bc42be50c2967db126357c999d44e12ca7ac80dc52"));
-	pub const RootMigController: AccountId = AccountId::from(hex_literal::hex!("8458ed39dc4b6f6c7255f7bc42be50c2967db126357c999d44e12ca7ac80dc52"));
-}
-
-#[test]
-fn ensure_key_ss58() {
-	use frame_support::traits::SortedMembers;
-	use sp_core::crypto::Ss58Codec;
-	let acc =
-		AccountId::from_ss58check("5F4EbSkZz18X36xhbsjvDNs6NuZ82HyYtq5UiJ1h9SBHJXZD").unwrap();
-	assert_eq!(acc, MigController::sorted_members()[0]);
-	let acc =
-		AccountId::from_ss58check("5F4EbSkZz18X36xhbsjvDNs6NuZ82HyYtq5UiJ1h9SBHJXZD").unwrap();
-	assert_eq!(acc, RootMigController::sorted_members()[0]);
-}
-
 #[test]
 fn ensure_epmb_weights_sane() {
 	use sp_io::TestExternalities;

prdoc/pr_10694.prdoc

@@ -0,0 +1,23 @@
+# Schema: Polkadot SDK PRDoc Schema (prdoc) v1.0.0
+# See doc at https://raw.githubusercontent.com/paritytech/polkadot-sdk/master/prdoc/schema_user.json
+
+title: "[Westend] Remove StateTrieMigration pallet - V0→V1 migration complete"
+
+doc:
+- audience: Runtime Dev
+  description: |
+    Removes the `pallet-state-trie-migration` from Westend Asset Hub runtime.
+
+    The V0 to V1 state trie format migration has completed successfully on Westend Asset Hub,
+    with 2,082,626 top keys and 28,095 child keys migrated. The pallet is no longer needed
+    and its storage will be cleaned up via RemovePallet migration.
+
+    This change:
+    - Removes pallet-state-trie-migration dependency from Cargo.toml
+    - Removes the pallet's Config implementation and parameter_types
+    - Removes the pallet from construct_runtime! macro
+    - Adds RemovePallet migration to clean up orphaned storage
+
+crates:
+- name: asset-hub-westend-runtime
+  bump: major