clocksource/drivers/timer-ti-dm: Remove unnecessary NULL check

The "pdata" pointer cannot be NULL because it's checked at the start of
the function.  Delete the check.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YoZM65RFDQAfqV6J@kiliSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

drivers/clocksource/timer-ti-dm.c

@@ -828,8 +828,7 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 		cpu_pm_register_notifier(&timer->nb);
 	}
 
-	if (pdata)
-		timer->errata = pdata->timer_errata;
+	timer->errata = pdata->timer_errata;
 
 	timer->pdev = pdev;