Remove ECwISC30to60E3r2 ocean and sea ice mesh

[xylar]

This version of the mesh had a bug in the landIceMask field and will be replaced with one of the IcoswISC30E3r* meshes.

This effectively reverts #5927

[proteanplanet]

Approved by visual inspection.

[vanroekel]

approving by visual inspection

[xylar]

@jonbob, I rebased to fix conflicts. I believe this is ready to test and merge when there's a chance.

[jonbob]

Passes:

• ERS_Ld5.T62_oQU120.CMPASO-NYF.chrysalis_intel
• SMS_Ld1.ne30pg2_EC30to60E2r2.WCYCL1850.chrysalis_intel.allactive-wcprod_1850

merged to next

[jonbob]

merged to master

@rljacob - what should we do with all the new files we have on the inputdata repo, now that this mesh is removed from e3sm?

[rljacob]

Since they weren't in an official release, and you don't want them used, go ahead and delete them. Where they ever referenced in an out-of-the-box case on master?

[jonbob]

They were used by some of the Critical Path runs, but I don't think by anyone else

[jonbob]

we also have files for some of the meshes we tried and did not merge for full e3sm support on:

/lcrc/group/e3sm/data/inputdata

We could cleanup those as well?

[rljacob]

But a lot of the critical path settings were made with run scripts. Can I create_newcase from a hash on master that uses those files?

@golaz should also say if they should be kept.

[jonbob]

Yes, there was a period when you could run create_newcase on master that would use this mesh and therefore need these files

[maltrud]

I did quite a few runs using this grid and I'd like to perform more analysis on them. I don't plan to run with it anymore, but would like access to the grid file. I can make my own copy, if necessary.