Moves all test runtimes to use derive_impl (#2409)

Step in https://github.com/paritytech/polkadot-sdk/issues/171

This PR adds `derive_impl` on all `frame_system` config impls for mock
runtimes. The overridden configs are maintained as of now to ensure
minimal changes.

---------

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

substrate/frame/nis/src/mock.rs

@@ -20,7 +20,7 @@
 use crate::{self as pallet_nis, Perquintill, WithMaximumOf};
 
 use frame_support::{
-	ord_parameter_types, parameter_types,
+	derive_impl, ord_parameter_types, parameter_types,
 	traits::{
 		fungible::Inspect, ConstU16, ConstU32, ConstU64, Everything, OnFinalize, OnInitialize,
 		StorageMapShim,
@@ -50,6 +50,7 @@ frame_support::construct_runtime!(
 	}
 );
 
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
 impl frame_system::Config for Test {
 	type BaseCallFilter = Everything;
 	type BlockWeights = ();