In commit (c5d38f08): "mx31_3ds: revert 3ds debug board relate code"
the debug board definitions are placed in a separate file.

Remove the remaining debug board related define from mach-mx31_3ds.c.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NRogerio Pimentel <rogerio.pimentel@freescale.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>