Remove experimental config/defines that never worked and weren't meant to be checked in.
Remove experimental config/defines that never worked and weren't meant
to be checked in.

Klopsch/ds3_browser,SpectraLogic/ds3_browser,Klopsch/ds3_browser,Klopsch/ds3_browser,SpectraLogic/ds3_browser,SpectraLogic/ds3_browser