[backport] remove 9360 collectives migrations (#2103)

parachains/runtimes/collectives/collectives-polkadot/src/lib.rs

@@ -550,6 +550,9 @@ pub type UncheckedExtrinsic =
 	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, SignedExtra>;
 /// Extrinsic type that has already been checked.
 pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, RuntimeCall, SignedExtra>;
+// All migrations executed on runtime upgrade as a nested tuple of types implementing
+// `OnRuntimeUpgrade`. Included migrations must be idempotent.
+type Migrations = ();
 
 /// Executive: handles dispatch to the various modules.
 pub type Executive = frame_executive::Executive<
@@ -561,13 +564,6 @@ pub type Executive = frame_executive::Executive<
 	Migrations,
 >;
 
-// All migrations executed on runtime upgrade as a nested tuple of types implementing `OnRuntimeUpgrade`.
-// Included migrations must be idempotent.
-type Migrations = (
-	pallet_alliance::migration::Migration<Runtime>,
-	pallet_balances::migration::MigrateToTrackInactive<Runtime, xcm_config::CheckingAccount>,
-);
-
 #[cfg(feature = "runtime-benchmarks")]
 #[macro_use]
 extern crate frame_benchmarking;