Removed remnant dtype in Field.

5 jobs for master in 16 minutes and 18 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
passed test_min #163365

00:01:15

passed test_mpi #163366

00:02:27

passed test_mpi_fftw #163367

00:02:47

passed test_mpi_fftw_hdf5 #163368

00:03:45

46.0%
 
  Release
passed release_image_master #163369

00:06:02