OMAPDSS: APPLY: Fix the usage of wait_for_completion_timeout

The return value of wait_for_completion_timeout() is always
>= 0 with unsigned int type.

So the condition "ret < 0" or "ret >= 0" is pointless.
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/omap2/dss/apply.c

@@ -414,8 +414,6 @@ static void wait_pending_extra_info_updates(void)
 	r = wait_for_completion_timeout(&extra_updated_completion, t);
 	if (r == 0)
 		DSSWARN("timeout in wait_pending_extra_info_updates\n");
-	else if (r < 0)
-		DSSERR("wait_pending_extra_info_updates failed: %d\n", r);
 }
 
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)