Removing _d in header file to make it go through TAMC (quick fix until set64bitconst.sh issue is settled)
Removing _d in header file to make it go through TAMC
(quick fix until set64bitconst.sh issue is settled)

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h