message: Remove unneeded Binary
diff: @@ -261,15 +261,11 @@ fn do_verify_secp256k1<A: Api, S: Storage, Q: Querier>(
  signature_ptr: u32,
  pubkey_ptr: u32,
  ) -> VmResult<u32> {
  - let hash = Binary(read_region(&env.memory(), hash_ptr, LENGTH_SHA256_HASH)?);
  + let hash = read_region(&env.memory(), hash_ptr, LENGTH_SHA256_HASH)?;
  - let signature = Binary(read_region(
  - &env.memory(),
  - signature_ptr,
  - MAX_LENGTH_SIGNATURE,
  - )?);
  + let signature = read_region(&env.memory(), signature_ptr, MAX_LENGTH_SIGNATURE)?;
  - let pubkey = Binary(read_region(&env.memory(), pubkey_ptr, MAX_LENGTH_PUBKEY)?);
  + let pubkey = read_region(&env.memory(), pubkey_ptr, MAX_LENGTH_PUBKEY)?;
  let result = secp256k1_verify(&hash, &signature, &pubkey);
  let gas_info = GasInfo::with_cost(GAS_COST_VERIFY_SECP256K1_SIGNATURE);
  