Remove execve guardian short-circuit note

Co-authored-by: Codex <noreply@openai.com>

codex-rs/core/src/tools/runtimes/shell/unix_escalation.rs

@@ -434,9 +434,6 @@ impl CoreShellActionProvider {
         let approval_id = Some(Uuid::new_v4().to_string());
         Ok(stopwatch
             .pause_for(async move {
-                // Guardian-routed execve reviews short-circuit in
-                // `process_decision()` before calling this helper. `prompt()`
-                // is only the human approval path.
                 let available_decisions = vec![
                     Some(ReviewDecision::Approved),
                     // Currently, ApprovedForSession is only honored for skills,