pinctrl: imx: Drop .remove callback for SCU variant

The return callback for SCU variant of the pinctrl drivers does
nothing but returns 0. Remove the return callback from the SCU
driver itself, that has the same effect. No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>

drivers/pinctrl/nxp/pinctrl-imx.c

@@ -256,9 +256,6 @@ int imx_pinctrl_remove(struct udevice *dev)
 	struct imx_pinctrl_priv *priv = dev_get_priv(dev);
 	struct imx_pinctrl_soc_info *info = priv->info;
 
-	if (info->flags & IMX8_USE_SCU)
-		return 0;
-
 	if (info->input_sel_base)
 		unmap_sysmem(info->input_sel_base);
 	if (info->base)

drivers/pinctrl/nxp/pinctrl-imx8.c

@@ -38,7 +38,6 @@ U_BOOT_DRIVER(imx8_pinctrl) = {
 	.id = UCLASS_PINCTRL,
 	.of_match = of_match_ptr(imx8_pinctrl_match),
 	.probe = imx8_pinctrl_probe,
-	.remove = imx_pinctrl_remove,
 	.priv_auto	= sizeof(struct imx_pinctrl_priv),
 	.ops = &imx8_pinctrl_ops,
 	.flags = DM_FLAG_PRE_RELOC,