Integrate pallet_contracts gas with the weight system (#5712)

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-Authored-By: Sergei Pepyakin <sergei@parity.io>

substrate/bin/node/testing/src/genesis.rs

@@ -97,7 +97,6 @@ pub fn config_endowed(
 		}),
 		pallet_contracts: Some(ContractsConfig {
 			current_schedule: Default::default(),
-			gas_price: 1 * MILLICENTS,
 		}),
 		pallet_babe: Some(Default::default()),
 		pallet_grandpa: Some(GrandpaConfig {

substrate/bin/node/testing/src/keyring.rs

@@ -74,7 +74,6 @@ pub fn signed_extra(nonce: Index, extra_fee: Balance) -> SignedExtra {
 		frame_system::CheckNonce::from(nonce),
 		frame_system::CheckWeight::new(),
 		pallet_transaction_payment::ChargeTransactionPayment::from(extra_fee),
-		Default::default(),
 	)
 }