set value (or eliminate) op-pt variables that are commented out

[gjcoram]

siId and siVg are declared, but the lines in ekv3_include/ekv3_oppoints.va to set their values are commented out:

//siId = sqrt(tmp + tmp2);

//siVg = (GmId == 0.0 )?
// 0.0:
// siId/GmId;

[gjcoram]

Other op-pt variables are also unassigned:

ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 12: Operating-point variable 'VS' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 13: Operating-point variable 'VD' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 14: Operating-point variable 'VG' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 15: Operating-point variable 'VB' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 27: Operating-point variable 'IG' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 35: Operating-point variable 'sat' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 40: Operating-point variable 'WeffNF' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 41: Operating-point variable 'Weff' was never assigned a value
ERROR in file ekv3_include/ekv3_variables_oppoint.va, line 42: Operating-point variable 'Leff' was never assigned a value