Revert "Merge pull request #971 from metropt/update_gyro_rate_ff3"

This reverts commit 4dc6538daf0888144f992889f3895278e75f1abd, reversing
changes made to 1a58f65ea6f9100d0726f0b0e71311618cf09dab.

This merge introduced the bug #1073 which results in a sensor error condition. I'm not sure under
what conditions it works and doesn't work so I'm ammenable to a proper fix. However, pending that
we should simply revert it and fix the FlyingF3 target.