Revert "Turn off overflow protection for various math functions" am: 2dd1d5e02e am: aa5498018f am: ce9cab33b7 am: 4c1ad41c8b am: bd91a6540d am: 08ccbcc16f am: 9070697124
am: 9986938f08

Change-Id: I9d46125d775350691fd30b79fc3672212ab463d3