Eliminates redundant options in ncclimo/ncremap calls

[forsyth2]

Request criteria

• I searched the zppy GitHub Discussions to find a similar question and didn't find it.
• I searched the zppy documentation.
• This issue does not match the other templates (i.e., it is not a bug report, documentation request, feature request, or a question.)

Issue description

From #400 (comment):

Eliminate these options:
--mem_mb=0 (ncclimo/ncremap automatically supply this srun option)
--area=area (ncclimo automatically supplies "area" as the default name for the area variable)
It would be nice to clean-up these calls in 1.10.0.

[forsyth2]

@czender

--area=area (ncclimo automatically supplies "area" as the default name for the area variable)

That command is not actually hard-coded. The bash file actually has that value filled in via --area={{ area_nm }}. So, we should keep that as-is.

--mem_mb=0 (ncclimo/ncremap automatically supply this srun option)

Since this is literally a one-line change, I'm going to just include this as part of #400.