Merge bitcoin/bitcoin#23157: txmempool -/-> validation 1/2: improve performance of check() and remove dependency on validation

082c5bf099 [refactor] pass coinsview and height to check() (glozow)
ed6115f1ea [mempool] simplify some check() logic (glozow)
9e8d7ad5d9 [validation/mempool] use Spend/AddCoin instead of UpdateCoins (glozow)
09d18916af MOVEONLY: remove single-use helper func CheckInputsAndUpdateCoins (glozow)
e8639ec26a [mempool] remove now-unnecessary code (glozow)
54c6f3c1da [mempool] speed up check() by using coins cache and iterating in topo order (glozow)
30e240f65e [bench] Benchmark CTxMemPool::check() (glozow)
cb1407196f [refactor/bench] make mempool_stress bench reusable and parameterizable (glozow)

Pull request description:

  Remove the txmempool <-> validation circular dependency by removing txmempool's dependency on validation. There are two functions in txmempool that need validation right now: `check()` and `removeForReorg()`. This PR removes the dependencies in `check()`.

  This PR also improves the performance of `CTxMemPool::check()` by walking through the entries exactly once, in ascending ancestorcount order, which guarantees that we see parents before children.

ACKs for top commit:
  jnewbery:
    reACK 082c5bf099
  GeneFerneau:
    tACK [082c5bf](082c5bf099)
  rajarshimaitra:
    tACK 082c5bf099
  theStack:
    Code-review ACK 082c5bf099

Tree-SHA512: 40ac622af1627b5c3e6abb4f0f035d833265a8c5e8dc88faf5354875dfb5137f137825e54bbd2a2668ed37b145c5d02285f776402629f58596e51853a9a79d29

src/validation.h

@@ -229,9 +229,6 @@ PackageMempoolAcceptResult ProcessNewPackage(CChainState& active_chainstate, CTx
                                                    const Package& txns, bool test_accept)
                                                    EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
-/** Apply the effects of this transaction on the UTXO set represented by view */
-void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight);
-
 /** Transaction validation functions */
 
 /**