ARM: dts: renesas: Remove leftovers after OF_UPSTREAM conversion

Remove leftover DTSI files after OF_UPSTREAM conversion.
Those are no longer used and no longer necessary, remove them.
No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Acked-by: Adam Ford <aford173@gmail.com>
6 files changed