Legacy `max_taker_vol` RPC missing `trade_with` param

[smk762]

Reported by @CharlVS as present in postman but not in docs.
Confirmed presence in KDF tests at https://github.com/KomodoPlatform/komodo-defi-framework/blob/main/mm2src/mm2_main/tests/docker_tests/docker_tests_inner.rs#L1072