USB gadget r8a66597-udc.c: duplicated include

drivers/usb/gadget/r8a66597-udc.c: linux/err.h is included more than once.
Signed-off-by: NAndrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

drivers/usb/gadget/r8a66597-udc.c

@@ -23,7 +23,6 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
-#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>