hwspinlock: Remove unused NEEDS_MANUAL_RELOC code bits

The last user of the NEEDS_MANUAL_RELOC has been removed in commit
26af162ac8f8 ("arch: m68k: Implement relocation")
Remove now unused NEEDS_MANUAL_RELOC code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/drivers/hwspinlock/hwspinlock-uclass.c b/drivers/hwspinlock/hwspinlock-uclass.c
index e012d5a..e9a4d7f 100644
--- a/drivers/hwspinlock/hwspinlock-uclass.c
+++ b/drivers/hwspinlock/hwspinlock-uclass.c
@@ -123,28 +123,7 @@
 	return ops->unlock(hws->dev, hws->id);
 }
 
-static int hwspinlock_post_bind(struct udevice *dev)
-{
-#if defined(CONFIG_NEEDS_MANUAL_RELOC)
-	struct hwspinlock_ops *ops = device_get_ops(dev);
-	static int reloc_done;
-
-	if (!reloc_done) {
-		if (ops->lock)
-			ops->lock += gd->reloc_off;
-		if (ops->unlock)
-			ops->unlock += gd->reloc_off;
-		if (ops->relax)
-			ops->relax += gd->reloc_off;
-
-		reloc_done++;
-	}
-#endif
-	return 0;
-}
-
 UCLASS_DRIVER(hwspinlock) = {
 	.id		= UCLASS_HWSPINLOCK,
 	.name		= "hwspinlock",
-	.post_bind	= hwspinlock_post_bind,
 };