Remove inconsistency in no. of arguments passed.

[smichr]

dmp_gf_sqf_part takes at most 2 arguments but in dmp_sqf_part, 3 args are being passed

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closes #7612

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dmp_gf_sqf_part takes at most 2 arguments but in dmp_sqf_part, 3 args are being passed

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closes #7612 

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[jksuom]

dmp-methods usually have the third argument u. Perhaps it should be added even if dmp_gf_sqf_part is currently not implemented yet.