gpio-ml-ioh: Delete unnecessary code

This register restore processing is unnecessary in suspend processing.
(The restore processing is already in resume processing)
Signed-off-by: NTomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

drivers/gpio/gpio-ml-ioh.c

@@ -284,7 +284,6 @@ static int ioh_gpio_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct ioh_gpio *chip = pci_get_drvdata(pdev);
 
 	ioh_gpio_save_reg_conf(chip);
-	ioh_gpio_restore_reg_conf(chip);
 
 	ret = pci_save_state(pdev);
 	if (ret) {