Fix build

runtime/common/src/parachains.rs

@@ -1781,6 +1781,7 @@ mod tests {
 		type ElectionLookahead = ElectionLookahead;
 		type Call = Call;
 		type UnsignedPriority = StakingUnsignedPriority;
+		type MaxIterations = ();
 	}
 
 	impl attestations::Trait for Test {

runtime/common/src/registrar.rs

@@ -844,6 +844,7 @@ mod tests {
 		type ElectionLookahead = ElectionLookahead;
 		type Call = Call;
 		type UnsignedPriority = StakingUnsignedPriority;
+		type MaxIterations = ();
 	}
 
 	impl timestamp::Trait for Test {

runtime/westend/src/lib.rs

@@ -322,8 +322,8 @@ impl staking::Trait for Runtime {
 	type NextNewSession = Session;
 	type ElectionLookahead = ElectionLookahead;
 	type Call = Call;
-	type MaxIteration = MaxIteration;
 	type UnsignedPriority = StakingUnsignedPriority;
+	type MaxIterations = MaxIterations;
 }
 
 parameter_types! {