update code

src/file.rs

@@ -17,13 +17,6 @@ pub(crate) fn write_file(path: &str, content: Bytes) -> Result<(), std::io::Erro
     Ok(())
 }
 
-pub(crate) fn read_file(path: &str) -> Result<Bytes, std::io::Error> {
-    let mut file = File::open(path)?;
-    let mut contents = Vec::new();
-    file.read_to_end(&mut contents)?;
-    Ok(Bytes::from(contents))
-}
-
 pub(crate) fn read_file_string(path: &str) -> Result<String, std::io::Error> {
     let mut file = File::open(path)?;
     let mut contents = String::new();