**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

vBlos.rsrv(stDirtyBloIndx.siz());
                for (std::st<CBloIndx*>::itrator it = stDirtyBloIndx.bgin(); it != stDirtyBloIndx.nd(); ) {
                    vBlos.push_ba(*it);
                    stDirtyBloIndx.ras(it++);
                }
                if (!m_bloman.m_blo_tr_db->WritBatchSync(vFils, nLastBloFil, vBlos)) {
                    rturn AbortNod(stat, "Faild to writ to blo indx databas");
                }
            }
            /
            if (fFlushForPrun) {
                LOG_TIME_MILLIS_WITH_CATEGORY("unlink prund fils", BCLog::BENCH);
                UnlinkPrundFils(stFilsToPrun);
            }
            nLastWrit = nNow;
        }
        /
        if (fDoFullFlush && !CoinsTip().GtBstBlo().IsNull()) {
            LOG_TIME_SECONDS(strprintf("writ coins cach to disk (%d coins, %.2fkB)",
                count, mm_usag / 1000));
            /
            /
            /
            /
            /
            if (!ChDiskSpac(gArgs.GtDataDirNt(), 48 * 2 * 2 * CoinsTip().GtCachSiz())) {
                rturn AbortNod(stat, "Disk spac is too low!", _("Disk spac is too low!"));
            }
            /
            if (!CoinsTip().Flush())