Remove legacy harware_wallets field from gui config

Ledger hmacs, wallet name and fingerprint labels where
moved one year ago in the settings.json file.
Here the commit of the new settings module:
bf1e9e4b80

A second commit in v4 checked that settings.json is present
otherwise it does the migration from the gui configuration file
to the settings file:
3eeba08248

We remove the legacy field from the config field so the wallet module
does not depend on the config module anymore to load hardware wallet
information.

gui/src/app/config.rs

@@ -1,4 +1,3 @@
-use crate::hw::HardwareWalletConfig;
 use serde::{Deserialize, Serialize};
 use std::path::{Path, PathBuf};
 use tracing_subscriber::filter;
@@ -13,9 +12,6 @@ pub struct Config {
     pub log_level: Option<String>,
     /// Use iced debug feature if true.
     pub debug: Option<bool>,
-    /// hardware wallets config.
-    /// LEGACY: Use Settings module instead.
-    pub hardware_wallets: Option<Vec<HardwareWalletConfig>>,
     /// Start internal bitcoind executable.
     #[serde(default)]
     pub start_internal_bitcoind: bool,
@@ -30,7 +26,6 @@ impl Config {
             daemon_rpc_path: None,
             log_level: None,
             debug: None,
-            hardware_wallets: None,
             start_internal_bitcoind,
         }
     }

gui/src/app/mod.rs

@@ -309,11 +309,8 @@ impl App {
     }
 
     pub fn load_wallet(&mut self) -> Result<Arc<Wallet>, Error> {
-        let wallet = Wallet::new(self.wallet.main_descriptor.clone()).load_settings(
-            &self.config,
-            &self.data_dir,
-            self.cache.network,
-        )?;
+        let wallet = Wallet::new(self.wallet.main_descriptor.clone())
+            .load_settings(&self.data_dir, self.cache.network)?;
 
         self.wallet = Arc::new(wallet);
 

gui/src/app/wallet.rs

@@ -1,11 +1,7 @@
 use std::collections::{HashMap, HashSet};
 use std::path::Path;
 
-use crate::{
-    app::{config::Config, settings},
-    hw::HardwareWalletConfig,
-    signer::Signer,
-};
+use crate::{app::settings, hw::HardwareWalletConfig, signer::Signer};
 
 use liana::{miniscript::bitcoin, signer::HotSigner};
 
@@ -93,16 +89,9 @@ impl Wallet {
 
     pub fn load_settings(
         self,
-        gui_config: &Config,
         datadir_path: &Path,
         network: bitcoin::Network,
     ) -> Result<Self, WalletError> {
-        let gui_config_hws = gui_config
-            .hardware_wallets
-            .as_ref()
-            .cloned()
-            .unwrap_or_default();
-
         let mut wallet = match settings::Settings::from_file(datadir_path.to_path_buf(), network) {
             Ok(settings) => {
                 if let Some(wallet_setting) = settings.wallets.first() {
@@ -110,18 +99,17 @@ impl Wallet {
                         .with_hardware_wallets(wallet_setting.hardware_wallets.clone())
                         .with_key_aliases(wallet_setting.keys_aliases())
                 } else {
-                    self.with_hardware_wallets(gui_config_hws)
+                    self
                 }
             }
             Err(settings::SettingsError::NotFound) => {
-                let wallet = self.with_hardware_wallets(gui_config_hws);
                 let s = settings::Settings {
-                    wallets: vec![settings::WalletSetting::from(&wallet)],
+                    wallets: vec![settings::WalletSetting::from(&self)],
                 };
 
                 tracing::info!("Settings file not found, creating one");
                 s.to_file(datadir_path.to_path_buf(), network)?;
-                wallet
+                self
             }
             Err(e) => return Err(e.into()),
         };

gui/src/loader.rs

@@ -203,7 +203,6 @@ impl Loader {
                                 load_application(
                                     daemon.clone(),
                                     info,
-                                    self.gui_config.clone(),
                                     self.datadir_path.clone(),
                                     self.network,
                                     self.internal_bitcoind.clone(),
@@ -356,7 +355,6 @@ impl Loader {
 pub async fn load_application(
     daemon: Arc<dyn Daemon + Sync + Send>,
     info: GetInfoResult,
-    gui_config: GUIConfig,
     datadir_path: PathBuf,
     network: bitcoin::Network,
     internal_bitcoind: Option<Bitcoind>,
@@ -369,8 +367,7 @@ pub async fn load_application(
     ),
     Error,
 > {
-    let wallet =
-        Wallet::new(info.descriptors.main).load_settings(&gui_config, &datadir_path, network)?;
+    let wallet = Wallet::new(info.descriptors.main).load_settings(&datadir_path, network)?;
 
     let coins = daemon
         .list_coins(&[CoinStatus::Unconfirmed, CoinStatus::Confirmed], &[])