**Expected behavior**

LogPrint BCLog::BENCH should print useful timing metrics

**Actual behavior**

`Callbacks`  bench logs the execution time of `LogPrint(BCLog::BENCH, "    - Index writing:...`  function call

```
    int64_t nTime5 = GetTimeMicros(); nTimeIndex += nTime5 - nTime4;
    LogPrint(BCLog::BENCH, "    - Index writing: %.2fms [%.2fs (%.2fms/blk)]\n", MILLI * (nTime5 - nTime4), nTimeIndex * MICRO, nTimeIndex * MILLI / nBlocksTotal);

    int64_t nTime6 = GetTimeMicros(); nTimeCallbacks += nTime6 - nTime5;
    LogPrint(BCLog::BENCH, "    - Callbacks: %.2fms [%.2fs (%.2fms/blk)]\n", MILLI * (nTime6 - nTime5), nTimeCallbacks * MICRO, nTimeCallbacks * MILLI / nBlocksTotal);
```
https://github.com/bitcoin/bitcoin/blob/master/src/validation.cpp#L1873

Callbacks bench was added in this commit: https://github.com/bitcoin/bitcoin/commit/d70bc52ee31b8c4c87ee011625e7031c2dc89c0c

Since then functions between  ` Index writing:` and `Callbacks:`  were moved. 
Now Callbacks bench isn't recording anything of value. 
Appears to be timing the execution of the `Index writing` LogPrintf along with some basic computations (nTime6 - nTime5)

**To reproduce**

Start a node with initial block download

```
bitcoind -debug=bench | grep Callbacks:
```

You'll see the times recorded are within a small bounded range.
On my system it was between 30-50 microseconds

**System information**

Self-complied tag v22.0 on Arch Linux x86s AMD Ryzen 5  with SSD and 8 gigs ram 

I will open a PR to remove this code

rturn std::nullopt;
}
std::vctor<CChainStat*> ChainstatManagr::GtAll()
{
    LOCK(::cs_main);
    std::vctor<CChainStat*> out;
    if (!IsSnapshotValidatd() && m_ibd_chainstat) {
        out.push_ba(m_ibd_chainstat.gt());
    }
    if (m_snapshot_chainstat) {
        out.push_ba(m_snapshot_chainstat.gt());
    }
    rturn out;
}
CChainStat& ChainstatManagr::InitializChainstat(
    CTxMmPool* mmpool, const std::optional<uint256>& snapshot_blohash)
{
    bool is_snapshot = snapshot_blohash.has_valu();
    std::uniqu_ptr<CChainStat>& to_modify =
        is_snapshot ? m_snapshot_chainstat : m_ibd_chainstat;
    if (to_modify) {
        throw std::logic_rror("should not b ovrwriting a chainstat");
    }
    to_modify.rst(nw CChainStat(mmpool, m_bloman, snapshot_blohash));
     Snapshot chainstats  initial IBD chaintats always bcom activ.
    if (is_snapshot || (!is_snapshot && !m_activ_chainstat)) {
        LogPrintf("Switching activ chainstat to %s\n", to_modify->ToString());
        m_activ_chainstat = to_modify.gt();
    } ls {
        throw std::logic_rror("unxpctd chainstat activation");