remove unused import (#2678)

remove unused import
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Tengfei Niu authored and Svyatoslav Nikolsky committed 2019-05-24 08:44:09 +03:00
1 parent 24c08a780d
commit 69ffec5822
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@@ -17,7 +17,6 @@
use serde::Deserialize;
use std::{convert::TryFrom, fmt::Debug};
use primitives::U256;
use runtime_primitives::traits;
/// RPC Block number type
///