iOS: Remove NSView.safeAreaInsets wrapper

The API is available on all iOS versions we support nowadays.

Pick-to: 6.6 6.5
Change-Id: Ia58c5ad1649e7e6b22f9c56a809e2455586a8e5a
Reviewed-by: Amr Elsayed <amr.elsayed@qt.io>
Reviewed-by: Doris Verria <doris.verria@qt.io>
(cherry picked from commit a89a916377f774ea55b43afc56cb89070097883f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/plugins/platforms/ios/qiosscreen.mm

@@ -323,7 +323,7 @@ void QIOSScreen::updateProperties()
     // and do not take split-view constraints into account, so we have to
     // combine the two to get the correct available geometry.
     QRect applicationFrame = QRectF::fromCGRect(m_uiScreen.qt_applicationFrame).toRect();
-    UIEdgeInsets safeAreaInsets = m_uiWindow.qt_safeAreaInsets;
+    UIEdgeInsets safeAreaInsets = m_uiWindow.safeAreaInsets;
     m_availableGeometry = m_geometry.adjusted(safeAreaInsets.left, safeAreaInsets.top,
         -safeAreaInsets.right, -safeAreaInsets.bottom).intersected(applicationFrame);
 

src/plugins/platforms/ios/qioswindow.mm

@@ -227,7 +227,7 @@ void QIOSWindow::applyGeometry(const QRect &rect)
 
 QMargins QIOSWindow::safeAreaMargins() const
 {
-    UIEdgeInsets safeAreaInsets = m_view.qt_safeAreaInsets;
+    UIEdgeInsets safeAreaInsets = m_view.safeAreaInsets;
     return QMargins(safeAreaInsets.left, safeAreaInsets.top,
         safeAreaInsets.right, safeAreaInsets.bottom);
 }

src/plugins/platforms/ios/quiview.h

@@ -32,7 +32,6 @@ QT_END_NAMESPACE
 - (QWindow *)qwindow;
 - (UIViewController *)viewController;
 - (QIOSViewController*)qtViewController;
-@property (nonatomic, readonly) UIEdgeInsets qt_safeAreaInsets;
 @end
 
 #ifdef Q_OS_IOS

src/plugins/platforms/ios/quiview.mm

@@ -829,11 +829,6 @@ inline ulong getTimeStamp(UIEvent *event)
     return nil;
 }
 
-- (UIEdgeInsets)qt_safeAreaInsets
-{
-    return self.safeAreaInsets;
-}
-
 @end
 
 #ifdef Q_OS_IOS