Fix unused parameter warnings when building without VERIFY
Fix unused parameter warnings when building without VERIFY

peterdettman/secp256k1,ElementsProject/secp256k1-zkp,ElementsProject/secp256k1-zkp,bitcoin-core/secp256k1,bitcoin-core/secp256k1,bitcoin/secp256k1,peterdettman/secp256k1,bitcoin/secp256k1,bitcoin/secp256k1,bitcoin/secp256k1,bitcoin/secp256k1