Since commit f13ff88b61 ("gpio: stm32: add ops set_dir_flags")
the gpio flags are supported by stm32 pinctrl driver.
The cd-gpios is correctly handle in U-Boot and the patch on the
device tree can be removed.
This reverts commit 3c2e2a1a79.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>