message: [types] fix build error
  Closes:
  Approved by: bmwill
diff: -#[cfg(any(test, feature = "testing"))]
  use crate::account_address::AccountAddress;
  -#[cfg(any(test, feature = "testing"))]
  use canonical_serialization::{
  CanonicalDeserialize, CanonicalDeserializer, CanonicalSerialize, CanonicalSerializer,
  };
  -#[cfg(any(test, feature = "testing"))]
  use crypto::HashValue;
  use failure::prelude::*;
  use hex;
  @@ -46,7 +43,6 @@ impl EventKey {
  EventKey::try_from(HashValue::random().to_vec().as_slice()).unwrap()
  }
  - #[cfg(any(test, feature = "testing"))]
  /// Create a unique handle by using an AccountAddress and a counter.
  pub fn new_from_address(addr: &AccountAddress, salt: u64) -> Self {
  let mut output_bytes = salt.to_be_bytes().to_vec();
  