Remove ::fRequireStandard global

src/kernel/mempool_options.h

@@ -33,6 +33,7 @@ struct MemPoolOptions {
     int check_ratio{0};
     int64_t max_size_bytes{DEFAULT_MAX_MEMPOOL_SIZE_MB * 1'000'000};
     std::chrono::seconds expiry{std::chrono::hours{DEFAULT_MEMPOOL_EXPIRY_HOURS}};
+    bool require_standard{true};
     bool full_rbf{DEFAULT_MEMPOOL_FULL_RBF};
     MemPoolLimits limits{};
 };