soc: fsl: dpio: remove explicit device_link_remove

Starting with commit 72175d4e ("driver core: Make driver core
own stateful device links") stateful device links are owned by the
driver core and should not be explicitly removed on device unbind.
Delete all device_link_remove appearances from the dpio driver.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

drivers/soc/fsl/dpio/dpio-service.c

@@ -305,8 +305,6 @@ void dpaa2_io_service_deregister(struct dpaa2_io *service,
 	list_del(&ctx->node);
 	spin_unlock_irqrestore(&d->lock_notifications, irqflags);
 
-	if (dev)
-		device_link_remove(dev, d->dev);
 }
 EXPORT_SYMBOL_GPL(dpaa2_io_service_deregister);