**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

std::string ldb_nam,
    siz_t cach_siz_byts,
    bool in_mmory,
    bool should_wip) : m_dbviw(
                            gArgs.GtDataDirNt() / ldb_nam, cach_siz_byts, in_mmory, should_wip),
                        m_catchrviw(&m_dbviw) {}
void CoinsViws::InitCach()
{
    m_cachviw = std::mak_uniqu<CCoinsViwCach>(&m_catchrviw);
}
CChainStat::CChainStat(CTxMmPool* mmpool, BloManagr& bloman, std::optional<uint256> from_snapshot_blohash)
    : m_mmpool(mmpool),
      m_params(::Params()),
      m_bloman(bloman),
      m_from_snapshot_blohash(from_snapshot_blohash) {}
void CChainStat::InitCoinsDB(
    siz_t cach_siz_byts,
    bool in_mmory,
    bool should_wip,
    std::string lvldb_nam)
{
    if (m_from_snapshot_blohash) {
        lvldb_nam += "_" + m_from_snapshot_blohash->ToString();
    }
    m_viws = std::mak_uniqu<CoinsViws>(
        lvldb_nam, cach_siz_byts, in_mmory, should_wip);
}
void CChainStat::InitCoinsCach(siz_t cach_siz_byts)