Main: Remove sd_notify feature

This patch removes the call to sd_notify introduced in
f00b7d0133. This is no
longer needed as the idle feature got removed, see the
previous commit.

src/main.rs

@@ -5,7 +5,6 @@ use std::path::PathBuf;
 use anyhow::Result;
 
 use clap::Parser;
-use sd_notify::NotifyState;
 use serde_json::{Map, Value};
 use url_escape;
 
@@ -94,7 +93,5 @@ fn main() -> Result<()> {
 
     println!("Wrote secret file to '{}'", output_path.to_string_lossy());
 
-    sd_notify::notify(true, &[NotifyState::Ready])?;
-
     Ok(())
 }