refactor: remove unused fn (cashubtc#790)

Author: thesimplekid

crates/cdk/src/mint/mod.rs

@@ -4,13 +4,11 @@ use std::collections::HashMap;
 use std::sync::Arc;
 
 use arc_swap::ArcSwap;
-use bitcoin::bip32::{DerivationPath, Xpriv};
-use bitcoin::secp256k1;
 use cdk_common::common::{PaymentProcessorKey, QuoteTTL};
 #[cfg(feature = "auth")]
 use cdk_common::database::MintAuthDatabase;
 use cdk_common::database::{self, MintDatabase};
-use cdk_common::nuts::{self, BlindSignature, BlindedMessage, CurrencyUnit, Id, Kind, MintKeySet};
+use cdk_common::nuts::{self, BlindSignature, BlindedMessage, CurrencyUnit, Id, Kind};
 use cdk_common::secret;
 use cdk_signatory::signatory::{Signatory, SignatoryKeySet};
 use futures::StreamExt;
@@ -26,7 +24,6 @@ use crate::cdk_payment::{self, MintPayment};
 use crate::error::Error;
 use crate::fees::calculate_fee;
 use crate::nuts::*;
-use crate::util::unix_time;
 use crate::Amount;
 #[cfg(feature = "auth")]
 use crate::OidcClient;
@@ -537,39 +534,6 @@ impl Mint {
     }
 }
 
-/// Generate new [`MintKeySetInfo`] from path
-#[instrument(skip_all)]
-fn create_new_keyset<C: secp256k1::Signing>(
-    secp: &secp256k1::Secp256k1<C>,
-    xpriv: Xpriv,
-    derivation_path: DerivationPath,
-    derivation_path_index: Option<u32>,
-    unit: CurrencyUnit,
-    max_order: u8,
-    input_fee_ppk: u64,
-) -> (MintKeySet, MintKeySetInfo) {
-    let keyset = MintKeySet::generate(
-        secp,
-        xpriv
-            .derive_priv(secp, &derivation_path)
-            .expect("RNG busted"),
-        unit,
-        max_order,
-    );
-    let keyset_info = MintKeySetInfo {
-        id: keyset.id,
-        unit: keyset.unit.clone(),
-        active: true,
-        valid_from: unix_time(),
-        valid_to: None,
-        derivation_path,
-        derivation_path_index,
-        max_order,
-        input_fee_ppk,
-    };
-    (keyset, keyset_info)
-}
-
 #[cfg(test)]
 mod tests {
     use std::str::FromStr;