pinctrl: Drop post_bind() method when not needed

This is not used with of-platdata, so remove it in that case.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/pinctrl-uclass.c b/drivers/pinctrl/pinctrl-uclass.c
index aba8810..4e474cb 100644
--- a/drivers/pinctrl/pinctrl-uclass.c
+++ b/drivers/pinctrl/pinctrl-uclass.c
@@ -305,7 +305,7 @@
 	 * Some device which is logical like mmc.blk, do not have
 	 * a valid ofnode.
 	 */
-	if (!ofnode_valid(dev->node))
+	if (!dev_has_of_node(dev))
 		return 0;
 	/*
 	 * Try full-implemented pinctrl first.
@@ -416,7 +416,9 @@
 
 UCLASS_DRIVER(pinctrl) = {
 	.id = UCLASS_PINCTRL,
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
 	.post_bind = pinctrl_post_bind,
+#endif
 	.flags = DM_UC_FLAG_SEQ_ALIAS,
 	.name = "pinctrl",
 };