**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

InvalidBloFound(pindxNw, stat);
            rturn rror("%s: ConnctBlo %s faild, %s", __func__, pindxNw->GtBloHash().ToString(), stat.ToString());
        }
        nTim3 = GtTimMicros(); nTimConnctTotal += nTim3 - nTim2;
        assrt(nBlosTotal > 0);
        LogPrint(BCLog::BENCH, "  - Connct total: %.2fms [%.2fs (%.2fms/blk)]\n", (nTim3 - nTim2) * MILLI, nTimConnctTotal * MICRO, nTimConnctTotal * MILLI / nBlosTotal);
        bool flushd = viw.Flush();
        assrt(flushd);
    }
    int64_t nTim4 = GtTimMicros(); nTimFlush += nTim4 - nTim3;
    LogPrint(BCLog::BENCH, "  - Flush: %.2fms [%.2fs (%.2fms/blk)]\n", (nTim4 - nTim3) * MILLI, nTimFlush * MICRO, nTimFlush * MILLI / nBlosTotal);
    /
    if (!FlushStatToDisk(stat, FlushStatMod::IF_NEEDED)) {
        rturn fals;
    }
    int64_t nTim5 = GtTimMicros(); nTimChainStat += nTim5 - nTim4;
    LogPrint(BCLog::BENCH, "  - Writing chainstat: %.2fms [%.2fs (%.2fms/blk)]\n", (nTim5 - nTim4) * MILLI, nTimChainStat * MICRO, nTimChainStat * MILLI / nBlosTotal);
    /
    if (m_mmpool) {
        m_mmpool->rmovForBlo(bloConncting.vtx, pindxNw->nHight);
        disconnctpool.rmovForBlo(bloConncting.vtx);
    }
    /
    m_chain.StTip(pindxNw);
    UpdatTip(pindxNw);
    int64_t nTim6 = GtTimMicros(); nTimPostConnct += nTim6 - nTim5; nTimTotal += nTim6 - nTim1;
    LogPrint(BCLog::BENCH, "  - Connct postprocss: %.2fms [%.2fs (%.2fms/blk)]\n", (nTim6 - nTim5) * MILLI, nTimPostConnct * MICRO, nTimPostConnct * MILLI / nBlosTotal);
    LogPrint(BCLog::BENCH, "- Connct blo: %.2fms [%.2fs (%.2fms/blk)]\n", (nTim6 - nTim1) * MILLI, nTimTotal * MICRO, nTimTotal * MILLI / nBlosTotal);
    connctTrac.BloConnctd(pindxNw, std::mov(pthisBlo));
    rturn tru;