fix build

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/client.rs

@@ -641,7 +641,7 @@ impl Client {
     }
 
     #[cfg(not(any(target_os = "android", target_os = "ios")))]
-    fn try_start_clipboard(_conf_tx: Option<ClientClipboardContext>) {
+    fn try_start_clipboard(_ctx: Option<ClientClipboardContext>) {
         let mut clipboard_lock = TEXT_CLIPBOARD_STATE.lock().unwrap();
         if clipboard_lock.running {
             return;