diff --git a/src/widgets/graphicsview/qgraphicswidget_p.cpp b/src/widgets/graphicsview/qgraphicswidget_p.cpp
index 660620a5d94..f3c568fa015 100644
--- a/src/widgets/graphicsview/qgraphicswidget_p.cpp
+++ b/src/widgets/graphicsview/qgraphicswidget_p.cpp
@@ -52,9 +52,6 @@
 #include <QtWidgets/qstyleoption.h>
 #include <QtWidgets/QStyleOptionTitleBar>
 #include <QtWidgets/QGraphicsSceneMouseEvent>
-#if 0 /* Used to be included in Qt4 for Q_WS_MAC */ && QT_CONFIG(style_mac)
-# include <private/qmacstyle_mac_p.h>
-#endif
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index f4e08dc670f..37d0e5c51e8 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -67,11 +67,6 @@
 #include <private/qabstractscrollarea_p.h>
 #include <private/qlineedit_p.h>
 #include <qdebug.h>
-#if 0 /* Used to be included in Qt4 for Q_WS_MAC */ && !defined(QT_NO_EFFECTS) && QT_CONFIG(style_mac)
-#include <private/qcore_mac_p.h>
-#include <private/qmacstyle_mac_p.h>
-#include <private/qt_cocoa_helpers_mac_p.h>
-#endif
 #ifndef QT_NO_EFFECTS
 # include <private/qeffects_p.h>
 #endif
diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index aa5d809431b..28b97b21076 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -58,11 +58,6 @@
 
 #include "qdockwidget_p.h"
 #include "qmainwindowlayout_p.h"
-#if 0 // Used to be included in Qt4 for Q_WS_MAC
-#include <private/qapplication_p.h>
-#include <private/qt_mac_p.h>
-#include <private/qmacstyle_mac_p.h>
-#endif
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/widgets/widgets/qmdiarea.cpp b/src/widgets/widgets/qmdiarea.cpp
index 18cb8237029..0dc45ddbc39 100644
--- a/src/widgets/widgets/qmdiarea.cpp
+++ b/src/widgets/widgets/qmdiarea.cpp
@@ -160,9 +160,6 @@
 
 #include <QApplication>
 #include <QStyle>
-#if 0 /* Used to be included in Qt4 for Q_WS_MAC */ && QT_CONFIG(style_mac)
-#include <private/qmacstyle_mac_p.h>
-#endif
 #include <QChildEvent>
 #include <QResizeEvent>
 #include <QScrollBar>
diff --git a/src/widgets/widgets/qpushbutton.cpp b/src/widgets/widgets/qpushbutton.cpp
index d8eae724ee6..cae1f9d1692 100644
--- a/src/widgets/widgets/qpushbutton.cpp
+++ b/src/widgets/widgets/qpushbutton.cpp
@@ -56,10 +56,6 @@
 #include "qdebug.h"
 #include "qlayoutitem.h"
 #include "qdialogbuttonbox.h"
-#if 0 // Used to be included in Qt4 for Q_WS_MAC
-#include "private/qmacstyle_mac_p.h"
-#include "private/qmacstyle_mac_p_p.h"
-#endif
 
 #ifndef QT_NO_ACCESSIBILITY
 #include "qaccessible.h"