video: exynos_dp: Remove unused variable disp_info

Remove unused variable disp_info to fix the following compilation warning:
exynos_dp.c: In function 'exynos_init_dp':
exynos_dp.c:860:23: warning: variable 'disp_info' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

drivers/video/exynos_dp.c

@@ -857,7 +857,6 @@ unsigned int exynos_init_dp(void)
 {
 	unsigned int ret;
 	struct edp_device_info *edp_info;
-	struct edp_disp_info disp_info;
 
 	edp_info = kzalloc(sizeof(struct edp_device_info), GFP_KERNEL);
 	if (!edp_info) {
@@ -870,7 +869,6 @@ unsigned int exynos_init_dp(void)
 		debug("failed to get edp_info data.\n");
 		return -EFAULT;
 	}
-	disp_info = edp_info->disp_info;
 
 	exynos_dp_disp_info(&edp_info->disp_info);