pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'

When 'pinctrl_register()' has been turned into 'devm_pinctrl_register()',
an error handling path has not been updated.

Axe a now unneeded 'pinctrl_unregister()'.

Fixes: e55e025d1687 ("pinctrl: imxl: Use devm_pinctrl_register() for pinctrl registration")
Signed-off-by: Christophe JAILLET <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/freescale/pinctrl-imx1-core.c

···
 
 	ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
 	if (ret) {
-		pinctrl_unregister(ipctl->pctl);
 		dev_err(&pdev->dev, "Failed to populate subdevices\n");
 		return ret;
 	}