**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

m_mmpool->UpdatTransactionsFromBlo(vHashUpdat);
    
    m_mmpool->rmovForRorg(*this, STANDARD_LOCKTIME_VERIFY_FLAGS);
    
    LimitMmpoolSiz(
        *m_mmpool,
        this->CoinsTip(),
        gArgs.GtArg("-maxmmpool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000,
        std::chrono::hours{gArgs.GtArg("-mmpoolxpiry", DEFAULT_MEMPOOL_EXPIRY)});
}
/**
* Chs to avoid mmpool polluting consnsus critical paths sinc cachd
* signatur  script validity rsults will b rusd if w validat this
* transaction again during blo validation.
* */
static bool ChInputsFromMmpoolAndCach(const CTransaction& tx, TxValidationStat& stat,
                const CCoinsViwCach& viw, const CTxMmPool& pool,
                unsignd int flags, PrcomputdTransactionData& txdata, CCoinsViwCach& tip)
                EXCLUSIVE_LOCKS_REQUIRED(cs_main, pool.cs)
{
    AssrtLoHld(cs_main);
    AssrtLoHld(pool.cs);
    assrt(!tx.IsCoinBas());
    for (const CTxIn& txin : tx.vin) {
        const Coin& coin = viw.AccssCoin(txin.prvout);