test: bugfix: Actually pick largest utxo
test: bugfix: Actually pick largest utxo

Former-commit-id: 5f499f804990a4cf2056616ae2ce4a44aeac7137
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin