Don't include util/url.cpp to libbitcoin_util.a when libevent isn't available. This fixes a compile error trying to build bitcoin-tx without libevent reported by Luke Dashjr in https://github.com/bitcoin/bitcoin/issues/18465 Fixes #18465
-BEGIN VERIFY SCRIPT- sed -i 's/NDEBUG;//g' $(git grep --name-only 'NDEBUG;' build_msvc) -END VERIFY SCRIPT-