Clean up pragmas and dead code in bksf.py#1240

mhucka wants to merge 2 commits intoquantumlib:mainquantumlib/OpenFermion:mainfrom

mhucka:fix-bksf-code-health-3650992452040884433mhucka/OpenFermion:fix-bksf-code-health-3650992452040884433Copy head branch name to clipboard