remove spurious import

vincenthz · Mikhail Zabaluev · commit a6b996c3d5e2 · 2021-08-02T17:55:42.000+03:00
diff --git a/chain-impl-mockchain/benches/tally.rs b/chain-impl-mockchain/benches/tally.rs
@@ -5,7 +5,6 @@ use chain_impl_mockchain::{
         DecryptedPrivateTally, DecryptedPrivateTallyProposal, EncryptedVoteTally, VoteCast,
         VotePlan, VoteTally,
     },
-    date::BlockDate,
     fee::LinearFee,
     header::BlockDate,
     testing::{
