drm/vc4: Remove unused connector

Somehow I didn't spot this when pushing :(

Fixes: 398e97994f6d ("drm/vc4: Remove open-coded drm_connector_register_all()")
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

drivers/gpu/drm/vc4/vc4_drv.c

@@ -176,7 +176,6 @@ static int vc4_drm_bind(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct drm_device *drm;
-	struct drm_connector *connector;
 	struct vc4_dev *vc4;
 	int ret = 0;