How delete node or property in overlayd dts?

From: åæ
Date: Tue Aug 14 2018 - 10:46:54 EST

/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 {
node2 {

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

after overlay, property1 and node2 is not deleted.