gma500: Remove unused variable

This patch removes a unused struct psb_intel_connector

Sparse gives a warning:
drivers/gpu/drm/gma500/cdv_intel_hdmi.c:142:30: warning:
	unused variable ‘psb_intel_connector’ [-Wunused-variable]
Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/cdv_intel_hdmi.c

@@ -139,8 +139,6 @@ static enum drm_connector_status cdv_hdmi_detect(
 {
 	struct psb_intel_encoder *psb_intel_encoder =
 					psb_intel_attached_encoder(connector);
-	struct psb_intel_connector *psb_intel_connector =
-					to_psb_intel_connector(connector);
 	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
 	struct edid *edid = NULL;
 	enum drm_connector_status status = connector_status_disconnected;