linux-imx

drm: rcar-du: Remove memory allocation error message

Memory allocation failures print messages to the kernel log, there's no
need to print an extra one. Remove the duplicate message.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>