Removed adding initial FF twice
Removed adding initial FF twice

Simplex maintains a list called new_ffs. These are the vertices used in
the simplex optimization, and it should include each parameter forward
differentiated as well as the initial parameter set.

The initial parameter set was accidentally added into this list twice.

arosale4/q2mm,Q2MM/q2mm,arosale4/q2mm,Q2MM/q2mm,ericchansen/q2mm,ericchansen/q2mm