3 files changed, 2 insertions, 14 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.h b/src/plugins/platforms/cocoa/qcocoahelpers.h
index b0222738e1..45bfd34e03 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.h
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.h
@@ -84,8 +84,6 @@ HIMutableShapeRef qt_mac_QRegionToHIMutableShape(const QRegion &region);
 
 OSStatus qt_mac_drawCGImage(CGContextRef inContext, const CGRect *inBounds, CGImageRef inImage);
 
-CGFloat qt_mac_get_scalefactor();
-
 QChar qt_mac_qtKey2CocoaKey(Qt::Key key);
 Qt::Key qt_mac_cocoaKey2QtKey(QChar keyCode);
 
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.mm b/src/plugins/platforms/cocoa/qcocoahelpers.mm
index 008d9da2cf..9783899742 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.mm
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.mm
@@ -614,11 +614,6 @@ InvalidContext:
         return err;
 }
 
-CGFloat qt_mac_get_scalefactor()
-{
-    return [[NSScreen mainScreen] userSpaceScaleFactor];
-}
-
 Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum)
 {
     switch (buttonNum) {
diff --git a/src/plugins/platforms/cocoa/qpaintengine_mac.mm b/src/plugins/platforms/cocoa/qpaintengine_mac.mm
index 5b83477881..4ae4fac6c2 100644
--- a/src/plugins/platforms/cocoa/qpaintengine_mac.mm
+++ b/src/plugins/platforms/cocoa/qpaintengine_mac.mm
@@ -1376,13 +1376,8 @@ QCoreGraphicsPaintEngine::updateRenderHints(QPainter::RenderHints hints)
 {
     Q_D(QCoreGraphicsPaintEngine);
     CGContextSetShouldAntialias(d->hd, hints & QPainter::Antialiasing);
-    static const CGFloat ScaleFactor = qt_mac_get_scalefactor();
-    if (ScaleFactor > 1.) {
-        CGContextSetInterpolationQuality(d->hd, kCGInterpolationHigh);
-    } else {
-        CGContextSetInterpolationQuality(d->hd, (hints & QPainter::SmoothPixmapTransform) ?
-                                         kCGInterpolationHigh : kCGInterpolationNone);
-    }
+    CGContextSetInterpolationQuality(d->hd, (hints & QPainter::SmoothPixmapTransform) ?
+                                     kCGInterpolationHigh : kCGInterpolationNone);
     bool textAntialiasing = (hints & QPainter::TextAntialiasing) == QPainter::TextAntialiasing;
     if (!textAntialiasing || d->disabledSmoothFonts) {
         d->disabledSmoothFonts = !textAntialiasing;