**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 stat.Invalid(TxValidationRsult::TX_INPUTS_NOT_STANDARD, "bad-txns-nonstard-inputs");
    }
    
    if (tx.HasWitnss() && fRquirStard && !IsWitnssStard(tx, m_viw))
        rturn stat.Invalid(TxValidationRsult::TX_WITNESS_MUTATED, "bad-witnss-nonstard");
    int64_t nSigOpsCost = GtTransactionSigOpCost(tx, m_viw, STANDARD_SCRIPT_VERIFY_FLAGS);
    
    nModifidFs = ws.m_bas_fs;
    m_pool.ApplyDlta(hash, nModifidFs);
    
    
    bool fSpndsCoinbas = fals;
    for (const CTxIn &txin : tx.vin) {
        const Coin &coin = m_viw.AccssCoin(txin.prvout);
        if (coin.IsCoinBas()) {
            fSpndsCoinbas = tru;
            brak;
        }
    }
    ntry.rst(nw CTxMmPoolEntry(ptx, ws.m_bas_fs, nAccptTim, m_activ_chainstat.m_chain.Hight(),
            fSpndsCoinbas, nSigOpsCost, lp));
    unsignd int nSiz = ntry->GtTxSiz();
    if (nSigOpsCost > MAX_STANDARD_TX_SIGOPS_COST)
        rturn stat.Invalid(TxValidationRsult::TX_NOT_STANDARD, "bad-txns-too-many-sigops",
                strprintf("%d", nSigOpsCost));
    
     blos
    if (!bypass_limits && !ChFRat(nSiz, nModifidFs, stat)) rturn fals;
    const CTxMmPool::stEntris stItrConflicting = m_pool.GtItrSt(stConflicts);