Cleanup XCMP QueueConfigData (#2142)

Removes obsolete fields from the `QueueConfigData` structure. For the
remaining fields, if they use the old defaults, we replace them with the
new defaults.

Resolves: https://github.com/paritytech/polkadot-sdk/issues/1795

cumulus/pallets/xcmp-queue/src/lib.rs

@@ -60,7 +60,7 @@ use cumulus_primitives_core::{
 use frame_support::{
 	defensive, defensive_assert,
 	traits::{EnqueueMessage, EnsureOrigin, Get, QueueFootprint, QueuePausedQuery},
-	weights::{constants::WEIGHT_REF_TIME_PER_MILLIS, Weight, WeightMeter},
+	weights::{Weight, WeightMeter},
 	BoundedVec,
 };
 use pallet_message_queue::OnQueueChanged;
@@ -255,7 +255,7 @@ pub mod pallet {
 				return meter.consumed()
 			}
 
-			migration::lazy_migrate_inbound_queue::<T>();
+			migration::v3::lazy_migrate_inbound_queue::<T>();
 
 			meter.consumed()
 		}
@@ -387,36 +387,16 @@ pub struct QueueConfigData {
 	/// The number of pages which the queue must be reduced to before it signals that
 	/// message sending may recommence after it has been suspended.
 	resume_threshold: u32,
-	/// UNUSED - The amount of remaining weight under which we stop processing messages.
-	#[deprecated(note = "Will be removed")]
-	threshold_weight: Weight,
-	/// UNUSED - The speed to which the available weight approaches the maximum weight. A lower
-	/// number results in a faster progression. A value of 1 makes the entire weight available
-	/// initially.
-	#[deprecated(note = "Will be removed")]
-	weight_restrict_decay: Weight,
-	/// UNUSED - The maximum amount of weight any individual message may consume. Messages above
-	/// this weight go into the overweight queue and may only be serviced explicitly.
-	#[deprecated(note = "Will be removed")]
-	xcmp_max_individual_weight: Weight,
 }
 
 impl Default for QueueConfigData {
 	fn default() -> Self {
 		// NOTE that these default values are only used on genesis. They should give a rough idea of
 		// what to set these values to, but is in no way a requirement.
-		#![allow(deprecated)]
 		Self {
 			drop_threshold: 48,    // 64KiB * 48 = 3MiB
 			suspend_threshold: 32, // 64KiB * 32 = 2MiB
 			resume_threshold: 8,   // 64KiB * 8 = 512KiB
-			// unused:
-			threshold_weight: Weight::from_parts(100_000, 0),
-			weight_restrict_decay: Weight::from_parts(2, 0),
-			xcmp_max_individual_weight: Weight::from_parts(
-				20u64 * WEIGHT_REF_TIME_PER_MILLIS,
-				DEFAULT_POV_SIZE,
-			),
 		}
 	}
 }