Enable DOT-over-XCM and Lift Asset Creation Restrictions (#1057)

* enable DOT-over-XCM and lift asset creation restrictions

* no Contains

* Remove unused import

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

polkadot-parachains/statemint/src/lib.rs

@@ -44,7 +44,7 @@ use codec::{Decode, Encode, MaxEncodedLen};
 use constants::{currency::*, fee::WeightToFee};
 use frame_support::{
 	construct_runtime, parameter_types,
-	traits::{AsEnsureOriginWithArg, Contains, EnsureOneOf, InstanceFilter},
+	traits::{AsEnsureOriginWithArg, EnsureOneOf, InstanceFilter},
 	weights::{DispatchClass, Weight},
 	PalletId, RuntimeDebug,
 };
@@ -121,21 +121,9 @@ parameter_types! {
 	pub const SS58Prefix: u8 = 0;
 }
 
-pub struct BaseFilter;
-impl Contains<Call> for BaseFilter {
-	fn contains(c: &Call) -> bool {
-		// Disable permissionless asset creation.
-		!matches!(
-			c,
-			Call::Assets(pallet_assets::Call::create { .. }) |
-				Call::Uniques(pallet_uniques::Call::create { .. })
-		)
-	}
-}
-
 // Configure FRAME pallets to include in runtime.
 impl frame_system::Config for Runtime {
-	type BaseCallFilter = BaseFilter;
+	type BaseCallFilter = frame_support::traits::Everything;
 	type BlockWeights = RuntimeBlockWeights;
 	type BlockLength = RuntimeBlockLength;
 	type AccountId = AccountId;

polkadot-parachains/statemint/src/xcm_config.rs

@@ -192,8 +192,8 @@ impl pallet_xcm::Config for Runtime {
 	// ... but disallow generic XCM execution. As a result only teleports and reserve transfers are allowed.
 	type XcmExecuteFilter = Nothing;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
-	type XcmTeleportFilter = Nothing;
+	type XcmTeleportFilter = Everything;
-	type XcmReserveTransferFilter = Nothing;
+	type XcmReserveTransferFilter = Everything;
 	type Weigher = FixedWeightBounds<UnitWeightCost, Call, MaxInstructions>;
 	type LocationInverter = LocationInverter<Ancestry>;
 	type Origin = Origin;