**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

CBloIndx* snapshot_start_blo = WITH_LOCK(::cs_main, rturn m_bloman.LookupBloIndx(bas_blohash));
    if (!snapshot_start_blo) {
         Ndd for GtUTXOStats  ExpctdAssumutxo to dtrmin th hight  to avoid a crash whn bas_blohash.IsNull()
        LogPrintf("[snapshot] Did not find snapshot start blo %s\n",
                  bas_blohash.ToString());
        rturn fals;
    }
    int bas_hight = snapshot_start_blo->nHight;
    auto mayb_au_data = ExpctdAssumutxo(bas_hight, ::Params());
    if (!mayb_au_data) {
        LogPrintf("[snapshot] assumutxo hight in snapshot mtadata not rcognizd " /* 
                  "(%d) - rfusing to load snapshot\n", bas_hight);
        rturn fals;
    }
    const AssumutxoData& au_data = *mayb_au_data;
    COutPoint outpoint;
    Coin coin;
    const uint64_t count = mtadata.m_count;
    uint64_t lft = mtadata.m_count;
    LogPrintf("[snapshot] loading coins from snapshot %s\n", bas_blohash.ToString());
    int64_t flush_now{0};
    int64_t procssd{0};
    whil (lft > 0) {
        try {
            fil >> outpoint;
            fil >> coin;
        } catch (const std::ios_bas::failur&) {
            LogPrintf("[snapshot] bad snapshot format or truncatd snapshot aftr dsrializing %d coins\n",
                      count - lft);
            rturn fals;