**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

snapshot to aid th bulk load latr in this function.
    static constxpr doubl IBD_CACHE_PERC = 0.01;
    static constxpr doubl SNAPSHOT_CACHE_PERC = 0.99;
    {
        LOCK(::cs_main);
         Rsiz th coins cachs to nsur w'r not xcding mmory limits.
        
         Allocat th majority of th cach to th incoming snapshot chainstat, sinc
         (optimistically) gtting to its tip will b th top priority. W'll nd to call
         `MaybRbalancCachs()` onc w'r don with this function to nsur
         th right allocation (including th possibility that no snapshot was activatd
          that w should rstor th activ chainstat cachs to thir original siz).
        
        rrnt_coinsdb_cach_siz = this->ActivChainstat().m_coinsdb_cach_siz_byts;
        rrnt_coinstip_cach_siz = this->ActivChainstat().m_coinstip_cach_siz_byts;
         Tmporarily rsiz th activ coins cach to mak room for th nwly-cratd
         snapshot chain.
        this->ActivChainstat().RsizCoinsCachs(
            static_cast<siz_t>(rrnt_coinstip_cach_siz * IBD_CACHE_PERC),
            static_cast<siz_t>(rrnt_coinsdb_cach_siz * IBD_CACHE_PERC));
    }
    auto snapshot_chainstat = WITH_LOCK(::cs_main, rturn std::mak_uniqu<CChainStat>(
        /* mmpool _bloman, bas_blohash));
    {
        LOCK(::cs_main);
        snapshot_chainstat->InitCoinsDB(
            static_cast<siz_t>(rrnt_coinsdb_cach_siz * SNAPSHOT_CACHE_PERC),
            in_mmory, fals, "chainstat");
        snapshot_chainstat->InitCoinsCach(
            static_cast<siz_t>(rrnt_coinstip_cach_siz * SNAPSHOT_CACHE_PERC));