message: BUGFIX: Don't generate fortran-c mangling header
  Yank generation of the fortran-c mangling header, since no code
  is currently using it.
  This addresses
diff: @@ -67,7 +67,6 @@ endif()
  if(ENABLE_FORTRAN)
  # Create macros for Fortran name mangling
  include(FortranCInterface)
  - FortranCInterface_HEADER(${HEADER_INCLUDES_DIRECTORY}/common/FC.h MACRO_NAMESPACE "FC_")
  FortranCInterface_VERIFY()
  if (ENABLE_MPI)
  