Clarify that code duplication issue was already resolved

[Copilot]

The request to address code duplication in TraceLens report generation has already been resolved in commit 3516b65.

Current State

The generate_tracelens_report() function already uses a helper function _generate_xlsx_and_csv_reports() that eliminates duplication:

def _generate_xlsx_and_csv_reports(generate_xlsx: bool, generate_csv: bool) -> list:
    """Helper to generate XLSX and/or CSV TraceLens reports."""
    local_generated_files = []
    
    if generate_xlsx:
        xlsx_path = os.path.join(output_dir, f"{report_name}_analysis.xlsx")
        dfs = generate_perf_report_pytorch(trace_file, output_xlsx_path=xlsx_path)
        # ... collection logic
    
    if generate_csv:
        csv_subdir = os.path.join(output_dir, report_name)
        os.makedirs(csv_subdir, exist_ok=True)
        generate_perf_report_pytorch(trace_file, output_csvs_dir=csv_subdir)
        # ... collection logic
    
    return local_generated_files

# All format cases reuse the helper
if output_format in ("all", "xlsx"):
    generated_files.extend(_generate_xlsx_and_csv_reports(generate_xlsx=True, generate_csv=False))

if output_format in ("all", "csv"):
    generated_files.extend(_generate_xlsx_and_csv_reports(generate_xlsx=False, generate_csv=True))

if output_format == "html":
    generated_files.extend(_generate_xlsx_and_csv_reports(generate_xlsx=True, generate_csv=True))

No further changes required.

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