docs: delete zh changelog

changes/ee/feat-10075.en.md

@@ -1 +1,2 @@
-Add node rebalance/node evacuation [functionality](https://github.com/emqx/eip/blob/main/active/0020-node-rebalance.md).
+Add node rebalance/node evacuation functionality.
+See also: [design doc](https://github.com/emqx/eip/blob/main/active/0020-node-rebalance.md)

changes/ee/feat-10075.zh.md

@@ -1 +0,0 @@
-添加节点再平衡/节点疏散[功能](https://github.com/emqx/eip/blob/main/active/0020-node-rebalance.md)。