Deprecate Currency trait

Deprecate the last traces of the Currency trait that were missed.

pallets/distance/src/benchmarking.rs

@@ -21,7 +21,7 @@ use super::*;
 
 use codec::Encode;
 use frame_benchmarking::v2::*;
-use frame_support::traits::{Get, OnFinalize, OnInitialize};
+use frame_support::traits::{fungible::Mutate, Get, OnFinalize, OnInitialize};
 use frame_system::{pallet_prelude::BlockNumberFor, RawOrigin};
 use scale_info::prelude::vec;
 use sp_runtime::Perbill;