Revert "sunxi: a13-olinuxino: Add user LED to the device tree"
This reverts commit 867dc8beba816695485f61c2c4ad80f11073c280.
The patch caused a build problem in allyesconfig by referencing an
undefined device tree label 'pio'.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>