remove unused code

src/main.rs

@@ -13,7 +13,6 @@ use std::collections::{HashMap, HashSet};
 use std::io::Read;
 use std::io::Write;
 use std::process::Stdio;
-use std::rc::Rc;
 
 #[derive(Debug)]
 enum Runner {
@@ -86,15 +85,6 @@ where
     }
 }
 
-fn try_thing() -> Result<(), anyhow::Error> {
-    anyhow::bail!("it failed!")
-}
-
-async fn test_handler() -> Result<(), AppError> {
-    try_thing()?;
-    Ok(())
-}
-
 #[derive(Serialize, Deserialize)]
 struct WD14Response {
     caption: HashMap<String, f32>,
@@ -173,7 +163,6 @@ async fn fetch_frame_as_image(
     frame_index: usize,
     frame_rate: f64, // X/1sec
 ) -> anyhow::Result<()> {
-    let frame_index_param = format!("select=eq(n\\,{})", frame_index);
     let timeline_index: f64 = frame_index as f64 / frame_rate;
     let timeline_index_param = format!("{:.5}", timeline_index);
     let builder = ffmpeg_cli::FfmpegBuilder::new()