Revert "CHART-23172 & CHART-23111 只处理没正确关闭engine"

This reverts commit ea109b45f6.

designer-base/src/main/java/com/fr/design/ui/compatible/NewModernUIPane.java

@@ -182,7 +182,8 @@ public class NewModernUIPane<T> extends ModernUIPane<T> {
     public void disposeBrowser() {
 
         if (browser != null) {
-            browser.engine().close();
+            browser.close();
+            browser = null;
         }
 
     }