Revert "configs/stm32f469: force usage of binutils 2.28.x"
This reverts commit 12049cc8b8972a9d0f1e27f1382cc5752d45312f.
Now that the binutils default has been changed for ARMv7M, this is no longer
needed.
Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>