Delete dead code

Several recent flag cleanups resulted in small portions of NPVC being
dead code. This CL removes the dead code in NPVC and QSCI. Changes
include removal of method parameters where only 1 value was ever passed
and any dead code resulting from those removals.

Test: building and running automated tests is sufficient
Bug: EXEMPT cleanup
Flag: EXEMPT cleanup CL
Change-Id: I4b9db7fec7a534f1c9b21b6d8389c3115bc46d23