Crypto withdrawal endpoint removed from the Trading API

Trading API

POST /v2/wallets/transfers has been removed from the Trading API following its 2026-10-09 sunset. The CreateCryptoTransferRequest schema has been removed along with it.

• Retrieving crypto funding transfers is unaffected: GET /v2/wallets/transfers and GET /v2/wallets/transfers/{transfer_id} remain available.
• Wallets, whitelisted addresses, and fee estimation endpoints are unchanged.