Revert "多数据部件分组属性逻辑 --fix1"

This reverts commit 009793f9.

@CONTROL/移动端多项数据控件/CONTROL-BASE.vue.ftl

@@ -420,7 +420,6 @@
     @Watch("items", { immediate: true })
     public itemsWatch(newVal:any,oldVal:any): void {
         if (newVal) {
-            this.anchorList.length = 0;
             newVal.forEach((item:any) => {
                 this.anchorList.push(item.${ctrl.getGroupPSDEField()?lower_case})
             });