diff --git a/substrate/wasm-runtime/polkadot/src/runtime/staking.rs b/substrate/wasm-runtime/polkadot/src/runtime/staking.rs
index 9b06602c84..ecc2532872 100644
--- a/substrate/wasm-runtime/polkadot/src/runtime/staking.rs
+++ b/substrate/wasm-runtime/polkadot/src/runtime/staking.rs
@@ -74,7 +74,6 @@ pub fn post_transactions() {
 	}
 }
 
-
 #[cfg(test)]
 mod tests {
 	use runtime_support::with_externalities;
@@ -82,12 +81,6 @@ mod tests {
 	use primitives::{AccountID};
 	use runtime::staking;
 
-	macro_rules! map {
-		($( $name:expr => $value:expr ),*) => (
-			vec![ $( ( $name, $value ) ),* ].into_iter().collect()
-		)
-	}
-
 	#[test]
 	fn staking_balance_works() {
 		let one: AccountID = [1u8; 32];