[media] omap3isp: remove unused var

drivers/media/platform/omap3isp/isppreview.c:932:6: warning: variable ‘features’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/platform/omap3isp/isppreview.c

···
 			     u32 active)
 {
 	unsigned int i;
-	u32 features;
 
 	if (update == 0)
 		return;
-
-	features = (prev->params.params[0].features & active)
-		 | (prev->params.params[1].features & ~active);
 
 	for (i = 0; i < ARRAY_SIZE(update_attrs); i++) {
 		const struct preview_update *attr = &update_attrs[i];