drm/virtio: remove some dead code

The goto is correct, and we never reach the return statement so just
delete the dead code.

Signed-off-by: Dan Carpenter <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/virtio/virtgpu_ttm.c

···
 	if (r) {
 		DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
 		goto err_dev_init;
-		return r;
 	}
 
 	r = ttm_bo_init_mm(&vgdev->mman.bdev, TTM_PL_TT, 0);
 	if (r) {
 		DRM_ERROR("Failed initializing GTT heap.\n");
 		goto err_mm_init;
-		return r;
 	}
 	return 0;