Revert "BI-134635 fix: 空白问题，高度初始化"

This reverts commit 816f59ec0a.

packages/fineui/src/base/list/virtualgrouplist.js

@@ -26,7 +26,6 @@ export class VirtualGroupList extends Widget {
 
     init() {
         this.renderedIndex = -1;
-        this._initSummaryHeight();
     }
 
     static xtype = "bi.virtual_group_list";
@@ -45,7 +44,7 @@ export class VirtualGroupList extends Widget {
                 },
                 {
                     type: VirtualGroup.xtype,
-                    height: this.summaryHeight,
+                    height: rowHeight * items.length,
                     ref: (ref) => {
                         this.container = ref;
                     },
@@ -84,10 +83,8 @@ export class VirtualGroupList extends Widget {
             o.scrollTop = this.element.scrollTop();
             if (!this.ticking) {
                 requestAnimationFrame(() => {
-                    const start = new Date().getTime();
                     this._calculateBlocksToRender();
                     this.ticking = false;
-                    console.log(new Date().getTime() - start);
                 });
                 this.ticking = true;
             }
@@ -203,21 +200,16 @@ export class VirtualGroupList extends Widget {
     _restore() {
         const o = this.options;
         this.renderedIndex = -1;
-        this._initSummaryHeight();
+        if (isFunction(o.rowHeight)) {
+            this.summaryHeight = sum(o.items, o.rowHeight);
+        } else {
+            this.summaryHeight = this._isAutoHeight() ? 0 : o.rowHeight * o.items.length;
+        }
         // 依赖于cache的占位元素也要初始化
         this.topBlank.setHeight(0);
         this.bottomBlank.setHeight(0);
     }
 
-    _initSummaryHeight() {
-        const { rowHeight, items } = this.options;
-        if (isFunction(rowHeight)) {
-            this.summaryHeight = sum(items, rowHeight);
-        } else {
-            this.summaryHeight = this._isAutoHeight() ? 0 : rowHeight * items.length;
-        }
-    }
-
     // 暂时只支持固定行高的场景
     scrollTo(scrollTop) {
         this.options.scrollTop = scrollTop;