simplify descent minimization

4 jobs for minimizer_tweaks in 19 minutes and 15 seconds
Status Job ID Name Coverage
  Test
passed #246487
test_min

00:03:57

passed #246488
test_mpi

00:06:46

passed #246489
test_mpi_fftw

00:06:15

passed #246490
test_mpi_fftw_hdf5

00:19:15

64.0%