ARM: dts: am335x-baltos-ir5221: Remove leftover pinctrl lines

When the Device Tree source file got merged, some commented pinctrl lines
were left in the file. These are already defined so seems to be a cleanup
that was missed. Delete the unneeded lines from the file.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>