Remove configureToolbar hack for >= KF 5.91

This is fixed upstream now with frameworks/kxmlgui!90

src/mainwindow.cpp

@@ -3951,11 +3951,13 @@ void MainWindow::slotToggleAutoPreview(bool enable)
     }
 }
 
+#if KXMLGUI_VERSION < QT_VERSION_CHECK(5,91,0)
 void MainWindow::configureToolbars()
 {
     // Since our timeline toolbar is a non-standard toolbar (as it is docked in a custom widget, not
     // in a QToolBarDockArea, we have to hack KXmlGuiWindow to avoid a crash when saving toolbar config.
     // This is why we hijack the configureToolbars() and temporarily move the toolbar to a standard location
+    // Fixed upstream since KF 5.91.0
     auto *ctnLay = static_cast<QVBoxLayout *>(m_timelineToolBarContainer->layout());
     ctnLay->removeWidget(m_timelineToolBar);
     addToolBar(Qt::BottomToolBarArea, m_timelineToolBar);
@@ -3980,6 +3982,7 @@ void MainWindow::rebuildTimlineToolBar()
     connect(m_timelineToolBar, &QWidget::customContextMenuRequested, this, &MainWindow::showTimelineToolbarMenu);
     m_timelineToolBar->setVisible(true);
 }
+#endif
 
 void MainWindow::showTimelineToolbarMenu(const QPoint &pos)
 {

src/mainwindow.h

@@ -19,6 +19,7 @@ SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 #include <QString>
 #include <QUndoView>
 
+#include <kxmlgui_version.h>
 #include <KActionCategory>
 #include <KColorSchemeManager>
 #include <KSelectAction>
@@ -319,7 +320,9 @@ public slots:
     void connectDocument();
     /** @brief Reload project profile in config dialog if changed. */
     void slotRefreshProfiles();
+#if KXMLGUI_VERSION < QT_VERSION_CHECK(5,91,0)
     void configureToolbars() override;
+#endif
     /** @brief Decreases the timeline zoom level by 1. */
     void slotZoomIn(bool zoomOnMouse = false);
     /** @brief Increases the timeline zoom level by 1. */
@@ -517,8 +520,10 @@ private slots:
     void slotCheckTabPosition();
     /** @brief Toggle automatic timeline preview on/off */
     void slotToggleAutoPreview(bool enable);
+#if KXMLGUI_VERSION < QT_VERSION_CHECK(5,91,0)
     /** @brief Rebuild/reload timeline toolbar. */
     void rebuildTimlineToolBar();
+#endif
     void showTimelineToolbarMenu(const QPoint &pos);
     /** @brief Open Cached Data management dialog. */
     void slotManageCache();