Correct clippy warnings

Currently intended to be done with:
cargo clippy --features "recommended merlin batch serialize experimental 
ed25519 ristretto p256 secp256k1 multisig" -- -A clippy::type_complexity 
-A dead_code

substrate/node/src/command_helper.rs

@@ -62,7 +62,7 @@ pub fn create_benchmark_extrinsic(
     sp_runtime::AccountId32::from(sender.public()).into(),
     runtime::Signature::Sr25519(
       runtime::SignedPayload::from_raw(
-        call.clone(),
+        call,
         extra.clone(),
         (
           (),