fix overhead benchmark

runtime/common/src/pallets_config.rs

@@ -214,7 +214,10 @@ macro_rules! pallets_config {
             // does a filter on the call
             type OnChargeTransaction = OneshotAccount;
             type OperationalFeeMultiplier = frame_support::traits::ConstU8<5>;
+            #[cfg(not(feature = "runtime-benchmarks"))]
             type WeightToFee = common_runtime::fees::WeightToFeeImpl<Balance>;
+            #[cfg(feature = "runtime-benchmarks")]
+            type WeightToFee = frame_support::weights::ConstantMultiplier::<u64, sp_core::ConstU64<0u64>>; // Necessary for overhead benchmarking until WeightToFee has a correct implementation
             type LengthToFee = common_runtime::fees::LengthToFeeImpl<Balance>;
             type FeeMultiplierUpdate = pallet_transaction_payment::ConstFeeMultiplier<FeeMultiplier>;
         }