Changed behavior so lrhill_present is only set by the parameter input…

… file to give the user the option to set a fixed value as in the previous versions.

src/swiftest/swiftest_io.f90

@@ -983,7 +983,6 @@ module subroutine swiftest_io_netcdf_open(self, param, readonly)
          ! Optional variables The User Doesn't Need to Know About
          status = nf90_inq_varid(nc%id, nc%mass_varname, nc%mass_varid)
          status = nf90_inq_varid(nc%id, nc%rhill_varname, nc%rhill_varid)
-         param%lrhill_present = (status == NF90_NOERR)
          status = nf90_inq_varid(nc%id, nc%npl_varname, nc%npl_varid)
          status = nf90_inq_varid(nc%id, nc%status_varname, nc%status_varid)
          status = nf90_inq_varid(nc%id, nc%ntp_varname, nc%ntp_varid)
@@ -1232,7 +1231,6 @@ module function swiftest_io_netcdf_read_frame_system(self, nc, param) result(ier
             status = nf90_get_var(nc%id, nc%rhill_varid, rtemp, start=[1, tslot], count=[idmax,1])
             if (status == NF90_NOERR) then
                pl%rhill(:) = pack(rtemp, plmask)
-               param%lrhill_present = .true.
             end if
          end if