configs: sandbox_deconfig: remove CONFIG_AMIGA_PARTITION

We do not actually test the code.
Scanning for Amiga partitions of the sandbox is extremely slow,
especially on the partially implemented USB device.

For build testing the other sandbox defconfigs are good enough.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
1 file changed