message: trie_accumulator: remove unused error variant
diff: @@ -15,7 +15,7 @@ use tracing::{debug, error, trace, warn};
  use casper_execution_engine::storage::trie::TrieRaw;
  use casper_hashing::{ChunkWithProof, Digest};
  -use casper_types::bytesrepr::{self, Bytes};
  +use casper_types::bytesrepr::Bytes;
  use crate::{
  components::{
  @@ -37,8 +37,6 @@ const COMPONENT_NAME: &str = "trie_accumulator";
  pub(crate) enum Error {
  #[error("trie accumulator fetcher error: {0}")]
  Fetcher(FetcherError<TrieOrChunk>),
  - #[error("trie accumulator serialization error: {0}")]
  - Bytesrepr(bytesrepr::Error),
  #[error("trie accumulator couldn't fetch trie chunk ({0}, {1})")]
  Absent(Digest, u64),
  #[error("request contained no peers; trie = {0}")]
  