Merge pull request '廖杰：修复编辑模式下删除时设备不存在' (#289) from liaojie into dev

Reviewed-on: http://git.feashow.cn/clay/tunnel-cloud-web/pulls/289

src/components/content/tunnelScene/TunnelScene.vue

@@ -237,6 +237,7 @@ function handleConfirmAddEqu() {
     .then((res) => {
       demo.removeEquipment(targetP.value);
       centerDialogVisible.value = false;
+      handleCancel();
       ElMessage({
         message: "删除成功！",
         type: "success",