diff --git a/src/gui/kernel/qplatformdialoghelper.cpp b/src/gui/kernel/qplatformdialoghelper.cpp
index 93de7933d4e..4eaacaab87f 100644
--- a/src/gui/kernel/qplatformdialoghelper.cpp
+++ b/src/gui/kernel/qplatformdialoghelper.cpp
@@ -8,9 +8,6 @@
 #if QT_CONFIG(regularexpression)
 #include <QtCore/QRegularExpression>
 #endif
-#if QT_CONFIG(settings)
-#include <QtCore/QSettings>
-#endif
 #include <QtCore/QSharedData>
 #include <QtCore/QUrl>
 #include <QtCore/QVariant>
@@ -242,8 +239,6 @@ public:
     enum { CustomColorCount = 16, StandardColorCount = 6 * 8 };
 
     QColorDialogStaticData();
-    inline void readSettings();
-    inline void writeSettings() const;
 
     QRgb customRgb[CustomColorCount];
     QRgb standardRgb[StandardColorCount];
@@ -258,31 +253,6 @@ QColorDialogStaticData::QColorDialogStaticData() : customSet(false)
             for (int b = 0; b < 3; ++b)
                 standardRgb[i++] = qRgb(r * 255 / 3, g * 255 / 3, b * 255 / 2);
     std::fill(customRgb, customRgb + CustomColorCount, 0xffffffff);
-    readSettings();
-}
-
-void QColorDialogStaticData::readSettings()
-{
-#if QT_CONFIG(settings)
-    const QSettings settings(QSettings::UserScope, QStringLiteral("QtProject"));
-    for (int i = 0; i < int(CustomColorCount); ++i) {
-        const QVariant v = settings.value("Qt/customColors/"_L1 + QString::number(i));
-        if (v.isValid())
-            customRgb[i] = v.toUInt();
-    }
-#endif
-}
-
-void QColorDialogStaticData::writeSettings() const
-{
-#if QT_CONFIG(settings)
-    if (customSet) {
-        const_cast<QColorDialogStaticData*>(this)->customSet = false;
-        QSettings settings(QSettings::UserScope, QStringLiteral("QtProject"));
-        for (int i = 0; i < int(CustomColorCount); ++i)
-            settings.setValue("Qt/customColors/"_L1 + QString::number(i), customRgb[i]);
-    }
-#endif
 }
 
 Q_GLOBAL_STATIC(QColorDialogStaticData, qColorDialogStaticData)
@@ -291,8 +261,6 @@ class QColorDialogOptionsPrivate : public QSharedData
 {
 public:
     QColorDialogOptionsPrivate() = default;
-    // Write out settings around destruction of dialogs
-    ~QColorDialogOptionsPrivate() { qColorDialogStaticData()->writeSettings(); }
 
     QColorDialogOptions::ColorDialogOptions options;
     QString windowTitle;