Fix runtime benchmarks build (#929)

polkadot/runtime/common/src/claims.rs

@@ -122,17 +122,17 @@ decl_storage! {
 	// This allows for type-safe usage of the Substrate storage database, so you can
 	// keep things around between blocks.
 	trait Store for Module<T: Trait> as Claims {
-		Claims get(claims) build(|config: &GenesisConfig<T>| {
+		Claims get(fn claims) build(|config: &GenesisConfig<T>| {
 			config.claims.iter().map(|(a, b)| (a.clone(), b.clone())).collect::<Vec<_>>()
 		}): map hasher(identity) EthereumAddress => Option<BalanceOf<T>>;
-		Total get(total) build(|config: &GenesisConfig<T>| {
+		Total get(fn total) build(|config: &GenesisConfig<T>| {
 			config.claims.iter().fold(Zero::zero(), |acc: BalanceOf<T>, &(_, n)| acc + n)
 		}): BalanceOf<T>;
 		/// Vesting schedule for a claim.
 		/// First balance is the total amount that should be held for vesting.
 		/// Second balance is how much should be unlocked per block.
 		/// The block number is when the vesting should start.
-		Vesting get(vesting) config():
+		Vesting get(fn vesting) config():
 			map hasher(identity) EthereumAddress
 			=> Option<(BalanceOf<T>, BalanceOf<T>, T::BlockNumber)>;
 	}
@@ -285,7 +285,6 @@ impl<T: Trait> Module<T> {
 	}
 }
 
-#[allow(deprecated)] // Allow `ValidateUnsigned`
 impl<T: Trait> sp_runtime::traits::ValidateUnsigned for Module<T> {
 	type Call = Call<T>;