usb: misc: onboard_usb_hub: Remove duplicated power_on delay

onboard_hub_power_on() already ensures the reset pulse width delay, so
there is no need to wait right after requesting GPIO as well.

Fixes: 40758e4 ("usb: misc: onboard_usb_hub: Add reset-gpio support")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220728064937.917935-1-alexander.stein@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: tq-steina

drivers/usb/misc/onboard_usb_hub.c

@@ -256,9 +256,6 @@ static int onboard_hub_probe(struct platform_device *pdev)
 	if (IS_ERR(hub->reset_gpio))
 		return dev_err_probe(dev, PTR_ERR(hub->reset_gpio), "failed to get reset GPIO\n");
 
-	if (hub->reset_gpio)
-		fsleep(hub->pdata->reset_us);
-
 	hub->dev = dev;
 	mutex_init(&hub->lock);
 	INIT_LIST_HEAD(&hub->udev_list);