remove 'implemented' keyword

4 jobs for byebye_implemented in 4 minutes and 30 seconds
Status Name Job ID Coverage
  Test
passed test_min #163969

00:02:04

passed test_mpi #163970

00:03:23

passed test_mpi_fftw #163971

00:03:49

passed test_mpi_fftw_hdf5 #163972

00:04:30

46.0%