configs: stm32mp1: remove optee defconfig

As the op-tee presence is detected by U-boot, the stm32mp15_optee_defconfig
is identical to stm32mp15_trusted_defconfig and can be removed.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
3 files changed