message: Removing voters from types/src/block_metadata.rs
  Closes:
  Approved by: davidiw
diff: @@ -66,10 +66,6 @@ impl BlockMetadata {
  pub fn proposer(&self) -> AccountAddress {
  self.proposer
  }
  -
  - pub fn voters(&self) -> Vec<AccountAddress> {
  - self.previous_block_votes.clone()
  - }
  }
  pub fn new_block_event_key() -> EventKey {
  