Remove unused variables in document viewer demo

This patch removes two unused data members and fixes
a documentation typo.

Pick-to: 6.5 6.5.0
Change-Id: I79fd66c727f2af54f1e13a33f8da2895b587663b
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>

2 files changed, 2 insertions, 4 deletions

diff --git a/examples/demos/documentviewer/doc/src/documentviewer.qdoc b/examples/demos/documentviewer/doc/src/documentviewer.qdoc
index 33b323f6..e9607a6f 100644
--- a/examples/demos/documentviewer/doc/src/documentviewer.qdoc
+++ b/examples/demos/documentviewer/doc/src/documentviewer.qdoc
@@ -154,7 +154,7 @@
     The class can be used to set override cursors when the mouse is hovering over a widget and
     to restore them upon departure.
     In order to prevent multiple HoverWatcher instances created for the same widget, it is
-    implemented as a signleton per widget.
+    implemented as a singleton per widget.
 
     HoverWatcher inherits from QObject and the QWidget watched becomes the instance's parent.
     An event filter is used to intercept the hover events without consuming them.
diff --git a/examples/demos/documentviewer/mainwindow.h b/examples/demos/documentviewer/mainwindow.h
index fb262cf7..64d95718 100644
--- a/examples/demos/documentviewer/mainwindow.h
+++ b/examples/demos/documentviewer/mainwindow.h
@@ -7,6 +7,7 @@
 #include <QMainWindow>
 #include <QDir>
 #include <QFileInfo>
+#include <QStringLiteral>
 
 class AbstractViewer;
 namespace Ui {
@@ -41,11 +42,8 @@ private:
     int m_classId = -1;
 
     static constexpr QLatin1StringView settingsName = QLatin1StringView("DocumentViewerExample");
-    static constexpr QLatin1StringView settingsFiles = QLatin1StringView("RecentFiles");
-    static constexpr QLatin1StringView settingsFileName = QLatin1StringView("FileName");
     static constexpr QLatin1StringView settingsDir = QLatin1StringView("WorkingDir");
     static constexpr QLatin1StringView settingsMainWindow = QLatin1StringView("MainWindow");
-    static constexpr QLatin1StringView settingsQuestions = QLatin1StringView("Questions");
     static constexpr QLatin1StringView settingsViewers = QLatin1StringView("Viewers");
 };