V4L/DVB (5912): Clean up duplicate includes in drivers/media/

This patch cleans up duplicate includes in
        drivers/media/
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/arv.c

@@ -23,7 +23,6 @@
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
-#include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/mm.h>

drivers/media/video/cx88/cx88-mpeg.c

@@ -28,7 +28,6 @@
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
 #include <asm/delay.h>
 
 #include "cx88.h"

drivers/media/video/cx88/cx88-video.c

@@ -36,7 +36,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
-#include <linux/dma-mapping.h>
 #include <asm/div64.h>
 
 #include "cx88.h"