-Wdeprecated-declarations: first deprecated in OS X 10.10

vcl/osx/salframeview.mm:201:16: warning: 'useOptimizedDrawing:' is deprecated: first deprecated in OS X 10.10 [-Wdeprecated-declarations]

Change-Id: I6025de6c23a73c625ddfe8398dfd91bd838fe83c
Reviewed-on: https://gerrit.libreoffice.org/10122Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/osx/salframeview.mm

@@ -198,7 +198,9 @@ static AquaSalFrame* getMouseContainerFrame()
                      { static_cast<CGFloat>(pFrame->maGeometry.nWidth), static_cast<CGFloat>(pFrame->maGeometry.nHeight) } };
     pFrame->VCLToCocoa( aRect );
     NSWindow* pNSWindow = [super initWithContentRect: aRect styleMask: mpFrame->getStyleMask() backing: NSBackingStoreBuffered defer: NO ];
+#if MACOSX_SDK_VERSION < 101000
     [pNSWindow useOptimizedDrawing: YES]; // OSX recommendation when there are no overlapping subviews within the receiver
+#endif
 
     // enable OSX>=10.7 fullscreen options if available and useful
     bool bAllowFullScreen = (0 == (mpFrame->mnStyle & (SAL_FRAME_STYLE_DIALOG | SAL_FRAME_STYLE_TOOLTIP | SAL_FRAME_STYLE_SYSTEMCHILD | SAL_FRAME_STYLE_FLOAT | SAL_FRAME_STYLE_TOOLWINDOW | SAL_FRAME_STYLE_INTRO)));