message: [net processing] Remove QueuedBlock.hash
  It's redundant with CBlockIndex::GetBlockHash()
diff: @@ -161,8 +161,6 @@ static constexpr size_t MAX_ADDR_TO_SEND{1000};
  namespace {
  /** Blocks that are in flight, and that are in the queue to be downloaded. */
  struct QueuedBlock {
  - /** Block hash */
  - uint256 hash;
  /** BlockIndex. We must have this since we only request blocks when we've already validated the header. */
  const CBlockIndex* pindex;
  /** Optional, used for CMPCTBLOCK downloads */
  @@ -812,7 +810,7 @@ bool PeerManagerImpl::MarkBlockAsInFlight(NodeId nodeid, const CBlockIndex* pind
  MarkBlockAsReceived(hash);
  std::list<QueuedBlock>::iterator it = state->vBlocksInFlight.insert(state->vBlocksInFlight.end(),
  - {hash, pindex, std::unique_ptr<PartiallyDownloadedBlock>(pit ? new PartiallyDownloadedBlock(&m_mempool) : nullptr)});
  + {pindex, std::unique_ptr<PartiallyDownloadedBlock>(pit ? new PartiallyDownloadedBlock(&m_mempool) : nullptr)});
  state->nBlocksInFlight++;
  if (state->nBlocksInFlight == 1) {
  // We're starting a block download (batch) from this peer.
  @@ -1138,7 +1136,7 @@ void PeerManagerImpl::FinalizeNode(const CNode& node)
  nSyncStarted--;
  for (const QueuedBlock& entry : state->vBlocksInFlight) {
  - mapBlocksInFlight.erase(entry.hash);
  + mapBlocksInFlight.erase(entry.pindex->GetBlockHash());
  }
  WITH_LOCK(g_cs_orphans, m_orphanage.EraseForPeer(nodeid));
  m_txrequest.DisconnectedPeer(nodeid);
  @@ -4854,7 +4852,7 @@ bool PeerManagerImpl::SendMessages(CNode* pto)
  QueuedBlock &queuedBlock = state.vBlocksInFlight.front();
  int nOtherPeersWithValidatedDownloads = m_peers_downloading_from - 1;
  if (current_time > state.m_downloading_since + std::chrono::seconds{consensusParams.nPowTargetSpacing} * (BLOCK_DOWNLOAD_TIMEOUT_BASE + BLOCK_DOWNLOAD_TIMEOUT_PER_PEER * nOtherPeersWithValidatedDownloads)) {
  - LogPrintf("Timeout downloading block %s from peer=%d, disconnecting\n", queuedBlock.hash.ToString(), pto->GetId());
  + LogPrintf("Timeout downloading block %s from peer=%d, disconnecting\n", queuedBlock.pindex->GetBlockHash().ToString(), pto->GetId());
  pto->fDisconnect = true;
  return true;
  }
  