message: Removing event_key from types/src/account_config/events/upgrade.rs
  Closes:
  Approved by: davidiw
diff: // Copyright (c) The Libra Core Contributors
  // SPDX-License-Identifier: Apache-2.0
  -use crate::{account_config::CORE_CODE_ADDRESS, event::EventKey};
  use anyhow::Result;
  use move_core_types::move_resource::MoveResource;
  use serde::{Deserialize, Serialize};
  @@ -21,10 +20,6 @@ impl UpgradeEvent {
  pub fn try_from_bytes(bytes: &[u8]) -> Result<Self> {
  lcs::from_bytes(bytes).map_err(Into::into)
  }
  -
  - pub fn event_key() -> EventKey {
  - EventKey::new_from_address(&CORE_CODE_ADDRESS, 15)
  - }
  }
  impl MoveResource for UpgradeEvent {
  