fix: The "Do not keep tabs" feature is not working.

不保留标签页功能未生效，因为历史上的一条提交引入了错误代码导致提前返回了，导致历史文件记录没有被清空。
revert 9ce896a.

Bug: https://pms.uniontech.com/bug-view-341299.html

Author: lichaofan2008

src/startmanager.cpp

@@ -58,11 +58,7 @@ StartManager::StartManager(QObject *parent)
         QDir().mkpath(m_backupDir);
     }
 
-    // 判断是否需要打开上次关闭前的文件
-    bool openSavedTab = Settings::instance()->settings->option("advance.startup.save_tab_before_close")->value().toBool();
-    if (openSavedTab) {
-        m_qlistTemFile = Settings::instance()->settings->option("advance.editor.browsing_history_temfile")->value().toStringList();
-    }
+    m_qlistTemFile = Settings::instance()->settings->option("advance.editor.browsing_history_temfile")->value().toStringList();
     // 初始化书签信息记录表
     initBookmark();
 
@@ -146,9 +142,6 @@ void StartManager::autoBackupFile()
     QFileInfo fileInfo;
     m_qlistTemFile.clear();
     listBackupInfo = Settings::instance()->settings->option("advance.editor.browsing_history_temfile")->value().toStringList();
-    if (m_windows.isEmpty()) {
-        return;
-    }
 
     //记录所有的文件信息
     for (int var = 0; var < m_windows.count(); ++var) {
@@ -226,6 +219,7 @@ void StartManager::autoBackupFile()
     }
 
     //将json串列表写入配置文件
+    qInfo() << __func__ << "history file counts:" << m_qlistTemFile.size();
     Settings::instance()->settings->option("advance.editor.browsing_history_temfile")->setValue(m_qlistTemFile);
     // 备份书签信息
     saveBookmark();