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 am: 245b572340 am: d0bc460432 am: 4f34250af7 am: 96f48e1601
am: 1c4083fcbf

Change-Id: I192e8cc1e7e39fa8491ba0677e0a4108ff7931da