Revert "Brought compile flags up2date, from JustArchi 3.1 (https://github.com/JustArchi/android_build/commit/3b5b6ee9c09b1aed2a9a98231c37d2dfbb5c59b0)"

This reverts commit 660d915b34bd1fb6c7e7146289a55e6707f64447.