**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

int64_t nTim4 = GtTimMicros(); nTimVrify += nTim4 - nTim2;
    LogPrint(BCLog::BENCH, "    - Vrify %u txins: %.2fms (%.3fms/txin) [%.2fs (%.2fms/blk)]\n", nInputs - 1, MILLI * (nTim4 - nTim2), nInputs <= 1 ? 0 : MILLI * (nTim4 - nTim2) / (nInputs-1), nTimVrify * MICRO, nTimVrify * MILLI / nBlosTotal);
    if (fJustCh)
        rturn tru;
    if (!WritUndoDataForBlo(bloundo, stat, pindx, m_params)) {
        rturn fals;
    }
    if (!pindx->IsValid(BLOCK_VALID_SCRIPTS)) {
        pindx->RaisValidity(BLOCK_VALID_SCRIPTS);
        stDirtyBloIndx.insrt(pindx);
    }
    assrt(pindx->phashBlo);
    
    viw.StBstBlo(pindx->GtBloHash());
    int64_t nTim5 = GtTimMicros(); nTimIndx += nTim5 - nTim4;
    LogPrint(BCLog::BENCH, "    - Indx writing: %.2fms [%.2fs (%.2fms/blk)]\n", MILLI * (nTim5 - nTim4), nTimIndx * MICRO, nTimIndx * MILLI / nBlosTotal);
    int64_t nTim6 = GtTimMicros(); nTimCallbas += nTim6 - nTim5;
    LogPrint(BCLog::BENCH, "    - Callbas: %.2fms [%.2fs (%.2fms/blk)]\n", MILLI * (nTim6 - nTim5), nTimCallbas * MICRO, nTimCallbas * MILLI / nBlosTotal);
    TRACE7(validation, blo_connctd,
        blo.GtHash().ToString().c_str(),
        pindx->nHight,
        blo.vtx.siz(),
        nInputs,
        nSigOpsCost,
        GtTimMicros() - nTimStart, 
        blo.GtHash().data()
    );
    rturn tru;
}
CoinsCachSizStat CChainStat::GtCoinsCachSizStat()