media: davinci: variable 'common' set but not used

Get rid of those two warnings:
drivers/media/platform/davinci/vpif_capture.c: In function 'vpif_remove':
drivers/media/platform/davinci/vpif_capture.c:1722:21: warning: variable 'common' set but not used [-Wunused-but-set-variable]
  struct common_obj *common;
                     ^~~~~~
drivers/media/platform/davinci/vpif_display.c: In function 'vpif_remove':
drivers/media/platform/davinci/vpif_display.c:1342:21: warning: variable 'common' set but not used [-Wunused-but-set-variable]
  struct common_obj *common;
                     ^~~~~~
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/davinci/vpif_capture.c

@@ -1719,7 +1719,6 @@ static __init int vpif_probe(struct platform_device *pdev)
  */
 static int vpif_remove(struct platform_device *device)
 {
-	struct common_obj *common;
 	struct channel_obj *ch;
 	int i;
 
@@ -1730,7 +1729,6 @@ static int vpif_remove(struct platform_device *device)
 	for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
 		/* Get the pointer to the channel object */
 		ch = vpif_obj.dev[i];
-		common = &ch->common[VPIF_VIDEO_INDEX];
 		/* Unregister video device */
 		video_unregister_device(&ch->video_dev);
 		kfree(vpif_obj.dev[i]);

drivers/media/platform/davinci/vpif_display.c

@@ -1339,7 +1339,6 @@ static __init int vpif_probe(struct platform_device *pdev)
  */
 static int vpif_remove(struct platform_device *device)
 {
-	struct common_obj *common;
 	struct channel_obj *ch;
 	int i;
 
@@ -1350,7 +1349,6 @@ static int vpif_remove(struct platform_device *device)
 	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
 		/* Get the pointer to the channel object */
 		ch = vpif_obj.dev[i];
-		common = &ch->common[VPIF_VIDEO_INDEX];
 		/* Unregister video device */
 		video_unregister_device(&ch->video_dev);
 		kfree(vpif_obj.dev[i]);