revert(tray): revert per-group latency testing (#8173)

This reverts commit cb751052a4.

Remove the tray latency test and its dashboard URL persistence and cache
changes because the two entry points have diverging behavior.

Preserve the subsequent IPC binding migration and remove generated fields,
input projections, and locale entries that depended on the reverted feature.

src-tauri/src/cmd/proxy.rs

@@ -108,32 +108,20 @@ fn runtime_group_scopes(config: Option<&Mapping>) -> BTreeMap<String, GroupScope
 #[tauri::command]
 #[specta::specta]
 pub async fn get_proxy_view() -> CmdResult<ProxyViewV1> {
-    proxy_view(None).await
-}
-
-pub(crate) async fn proxy_view(provider_timeout: Option<std::time::Duration>) -> CmdResult<ProxyViewV1> {
     let runtime = Config::runtime().await;
     let latest_runtime = runtime.latest_arc();
     let runtime_group_order = runtime_group_order(latest_runtime.config.as_ref());
     let group_scopes = runtime_group_scopes(latest_runtime.config.as_ref());
 
     let mihomo = Handle::mihomo();
-    let (proxies, providers) = tokio::join!(mihomo.get_proxies(), async {
-        match provider_timeout {
-            Some(timeout) => tokio::time::timeout(timeout, mihomo.get_proxy_providers())
-                .await
-                .ok()
-                .and_then(Result::ok),
-            None => mihomo.get_proxy_providers().await.ok(),
-        }
-    });
+    let (proxies, providers) = tokio::join!(mihomo.get_proxies(), mihomo.get_proxy_providers(),);
     let proxies = proxies.stringify_err()?;
 
     Ok(ProxyViewBuilder::build(ProxyViewInput {
         runtime_group_order,
         group_scopes,
         proxies,
-        providers,
+        providers: providers.ok(),
     }))
 }