gcc: remove all variant (#5283)
gcc: remove all variant (#5283)


mfherbst/spack,matthiasdiener/spack,krafczyk/spack,iulian787/spack,iulian787/spack,EmreAtes/spack,iulian787/spack,LLNL/spack,mfherbst/spack,LLNL/spack,mfherbst/spack,tmerrick1/spack,LLNL/spack,tmerrick1/spack,LLNL/spack,tmerrick1/spack,krafczyk/spack,LLNL/spack,matthiasdiener/spack,matthiasdiener/spack,krafczyk/spack,EmreAtes/spack,tmerrick1/spack,EmreAtes/spack,EmreAtes/spack,krafczyk/spack,EmreAtes/spack,iulian787/spack,iulian787/spack,mfherbst/spack,matthiasdiener/spack,tmerrick1/spack,mfherbst/spack,matthiasdiener/spack,krafczyk/spack