remove migration (#2873)

Author: zjb0807

runtime/acala/src/lib.rs

@@ -1987,15 +1987,8 @@ pub type Executive = frame_executive::Executive<
 	Migrations,
 >;
 
-parameter_types! {
-	pub const StateTrieMigrationName: &'static str = "StateTrieMigration";
-}
-
 #[allow(unused_parens)]
-type Migrations = (
-	frame_support::migrations::RemovePallet<StateTrieMigrationName, RocksDbWeight>,
-	pallet_xcm::migration::MigrateToLatestXcmVersion<Runtime>,
-);
+type Migrations = ();
 
 #[cfg(feature = "runtime-benchmarks")]
 #[macro_use]

runtime/karura/src/lib.rs

@@ -1996,7 +1996,7 @@ pub type Executive = frame_executive::Executive<
 >;
 
 #[allow(unused_parens)]
-type Migrations = (pallet_xcm::migration::MigrateToLatestXcmVersion<Runtime>);
+type Migrations = ();
 
 #[cfg(feature = "runtime-benchmarks")]
 #[macro_use]