Remove triclinic interpolation test case
Remove triclinic interpolation test case

As this does not work.

jwookey/MSAT,pusher96/MSAT,alanfbaird/MSAT,pusher96/MSAT,jwookey/MSAT,pusher96/MSAT,alanfbaird/MSAT,jwookey/MSAT,alanfbaird/MSAT