Revert "Ensure shell command skills trigger approval (#12697)" (#12721)

This reverts commit daf0f03ac8.

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codex-rs/core/tests/suite/exec.rs

@@ -33,7 +33,6 @@ async fn run_test_cmd(tmp: TempDir, cmd: Vec<&str>) -> Result<ExecToolCallOutput
 
     let params = ExecParams {
         command: cmd.iter().map(ToString::to_string).collect(),
-        original_command: cmd.iter().map(ToString::to_string).collect(),
         cwd: tmp.path().to_path_buf(),
         expiration: 1000.into(),
         env: HashMap::new(),