configs/ci40: remove defconfig
>From the original submitter of this defconfig:
"""
I no longer have access to ci40 board. It would be difficult for me to
maintain it.
"""
And this defconfig currently fails to build with gcc 6.x. Therefore,
drop it.
Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/
55306806
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit
49d2638276e2d464e016effa1f95a15545cf9208)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>