Remove references to Application Example

Removing dangling references to the example due to its move to
manual tests.

Change-Id: I13f5fad93763d1ef70ddd8b3dcf430b5df8e28f9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit d2db1d511ddbc4d676bcd93881e17e42edd37b84)

examples/widgets/tools/settingseditor/locationdialog.cpp

@@ -33,7 +33,6 @@ LocationDialog::LocationDialog(QWidget *parent)
     applicationComboBox = new QComboBox;
     applicationComboBox->addItem(tr("Any"));
     applicationComboBox->addItem(tr("Qt Creator"));
-    applicationComboBox->addItem(tr("Application Example"));
     applicationComboBox->addItem(tr("Assistant"));
     applicationComboBox->addItem(tr("Designer"));
     applicationComboBox->addItem(tr("Linguist"));

src/corelib/io/qsettings.cpp

@@ -2340,7 +2340,7 @@ void QConfFileSettingsPrivate::ensureSectionParsed(QConfFile *confFile,
 
     \endlist
 
-    \sa QVariant, QSessionManager, {Settings Editor Example}, {Qt Widgets - Application Example}
+    \sa QVariant, QSessionManager, {Settings Editor Example}
 */
 
 /*! \enum QSettings::Status

src/gui/kernel/qaction.cpp

@@ -171,9 +171,7 @@ QObject *QActionPrivate::menu() const
 
     Once a QAction has been created, it should be added to the relevant
     menu and toolbar, then connected to the slot which will perform
-    the action. For example:
-
-    \snippet ../widgets/mainwindows/mdi/mainwindow.cpp qaction setup
+    the action.
 
     Actions are added to widgets using QWidget::addAction() or
     QGraphicsWidget::addAction(). Note that an action must be added to a
@@ -186,7 +184,7 @@ QObject *QActionPrivate::menu() const
     use as menu items.
 
 
-    \sa QMenu, QToolBar, {Qt Widgets - Application Example}
+    \sa QMenu, QToolBar
 */
 
 /*!

src/widgets/doc/qtwidgets.qdocconf

@@ -60,7 +60,3 @@ imagedirs   += images \
 
 navigation.landingpage = "Qt Widgets"
 navigation.cppclassespage = "Qt Widgets C++ Classes"
-manifestmeta.highlighted.names = "QtWidgets/Qt Widgets - Application Example"
-
-# Fail the documentation build if there are more warnings than the limit
-warninglimit = 0

src/widgets/widgets/qmainwindow.cpp

@@ -280,8 +280,7 @@ void QMainWindowPrivate::init()
     is the position and size (relative to the size of the main window)
     of the toolbars and dock widgets that are stored.
 
-    \sa QMenuBar, QToolBar, QStatusBar, QDockWidget,
-    {MDI Example}, {Menus Example}
+    \sa QMenuBar, QToolBar, QStatusBar, QDockWidget, {Menus Example}
 */
 
 /*!

src/widgets/widgets/qplaintextedit.cpp

@@ -1186,7 +1186,6 @@ void QPlainTextEditPrivate::ensureViewportLayouted()
    editor with line wrap enabled in real time. It also makes for a
    fast log viewer (see setMaximumBlockCount()).
 
-
     \sa QTextDocument, QTextCursor
         {Syntax Highlighter Example}, {Rich Text Processing}