fetch_strategy: remove vestigial code (#15431)
fetch_strategy: remove vestigial code (#15431)


LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack,iulian787/spack,LLNL/spack,LLNL/spack