Back out "Add instrumentation mode"
Back out "Add instrumentation mode"

Summary: Revert {D32283434 (https://github.com/facebook/redex/commit/99812ca0e24fbe9e00eba63a56c40ad188972ee8)}.

Reviewed By: kuganv

Differential Revision: D32465163

fbshipit-source-id: d008f22bbba7a5c05fada0252a07396107e059f8

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex