sysreset: 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/sysreset/sysreset-uclass.c b/drivers/sysreset/sysreset-uclass.c
index 279b087..6151b5f 100644
--- a/drivers/sysreset/sysreset-uclass.c
+++ b/drivers/sysreset/sysreset-uclass.c
@@ -158,23 +158,7 @@
 }
 #endif
 
-static int sysreset_post_bind(struct udevice *dev)
-{
-#if defined(CONFIG_NEEDS_MANUAL_RELOC)
-	struct sysreset_ops *ops = sysreset_get_ops(dev);
-	static int reloc_done;
-
-	if (!reloc_done) {
-		if (ops->request)
-			ops->request += gd->reloc_off;
-		reloc_done++;
-	}
-#endif
-	return 0;
-}
-
 UCLASS_DRIVER(sysreset) = {
 	.id		= UCLASS_SYSRESET,
 	.name		= "sysreset",
-	.post_bind	= sysreset_post_bind,
 };