How delete node or property in overlayd dts?

[张波 <zbsdta@xxxxxxxxx>]

/delete-node/ /delete-prop/ could be used in dtsi files without device
tree overlay.

but with device tree overlay,  /delete-node/ and  /delete-prop/ are not work.
How to delete property and node in overlay dts?

for example,
in basel.dts have following node
node1 {
    property1;
    property3;
    node2 {
        property2;
    }
}

in overlay.dts as following
 node1 {
    /delete-property/ property1;
    /delete-node/ node2;
}

after overlay, property1 and node2 is not deleted.