Removed old variable_complexity_problem.py and associated files.

examples/scripts/variable_complexity_problem.py

...es/scripts/variable_complexity_problem/(X)DSM/FPG_IDF.pdf

...scripts/variable_complexity_problem/(X)DSM/FPG_MDF-GS.pdf

.../scripts/variable_complexity_problem/(X)DSM/FPG_MDF-J.pdf

...riable_complexity_problem/(X)DSM/FPG_converged-DOE-GS.pdf

...ariable_complexity_problem/(X)DSM/FPG_converged-DOE-J.pdf

...riable_complexity_problem/(X)DSM/FPG_converged-MDA-GS.pdf

...ariable_complexity_problem/(X)DSM/FPG_converged-MDA-J.pdf

...able_complexity_problem/(X)DSM/FPG_unconverged-DOE-GS.pdf

...iable_complexity_problem/(X)DSM/FPG_unconverged-DOE-J.pdf

...able_complexity_problem/(X)DSM/FPG_unconverged-MDA-GS.pdf

...iable_complexity_problem/(X)DSM/FPG_unconverged-MDA-J.pdf

...able_complexity_problem/(X)DSM/FPG_unconverged-OPT-GS.pdf

...iable_complexity_problem/(X)DSM/FPG_unconverged-OPT-J.pdf

...s/scripts/variable_complexity_problem/(X)DSM/Mdao_IDF.pdf

...cripts/variable_complexity_problem/(X)DSM/Mdao_MDF-GS.pdf

...scripts/variable_complexity_problem/(X)DSM/Mdao_MDF-J.pdf

...iable_complexity_problem/(X)DSM/Mdao_converged-DOE-GS.pdf

...riable_complexity_problem/(X)DSM/Mdao_converged-DOE-J.pdf

...iable_complexity_problem/(X)DSM/Mdao_converged-MDA-GS.pdf