Remove non-Qt6 compile time switches from QtCore

We already manage to compile without this code, and none of it are full
classes or separate functions suitable for qt5compat.

Change-Id: I47facac7ec621cfc4b0b26214b7de37897443519
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

6 files changed, 1 insertions, 44 deletions

diff --git a/src/corelib/kernel/qabstracteventdispatcher.cpp b/src/corelib/kernel/qabstracteventdispatcher.cpp
index b2bc199c8c..e77e8d3865 100644
--- a/src/corelib/kernel/qabstracteventdispatcher.cpp
+++ b/src/corelib/kernel/qabstracteventdispatcher.cpp
@@ -477,11 +477,7 @@ void QAbstractEventDispatcher::removeNativeEventFilter(QAbstractNativeEventFilte
     \sa installNativeEventFilter(), QAbstractNativeEventFilter::nativeEventFilter()
     \since 5.0
 */
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 bool QAbstractEventDispatcher::filterNativeEvent(const QByteArray &eventType, void *message, qintptr *result)
-#else
-bool QAbstractEventDispatcher::filterNativeEvent(const QByteArray &eventType, void *message, long *result)
-#endif
 {
     Q_D(QAbstractEventDispatcher);
     if (!d->eventFilters.isEmpty()) {
diff --git a/src/corelib/kernel/qabstracteventdispatcher.h b/src/corelib/kernel/qabstracteventdispatcher.h
index 1268b2e04e..e3bc94a762 100644
--- a/src/corelib/kernel/qabstracteventdispatcher.h
+++ b/src/corelib/kernel/qabstracteventdispatcher.h
@@ -104,11 +104,7 @@ public:
 
     void installNativeEventFilter(QAbstractNativeEventFilter *filterObj);
     void removeNativeEventFilter(QAbstractNativeEventFilter *filterObj);
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     bool filterNativeEvent(const QByteArray &eventType, void *message, qintptr *result);
-#else
-    bool filterNativeEvent(const QByteArray &eventType, void *message, long *result);
-#endif
 
 Q_SIGNALS:
     void aboutToBlock();
@@ -119,7 +115,7 @@ protected:
                              QObject *parent);
 };
 
-Q_DECLARE_TYPEINFO(QAbstractEventDispatcher::TimerInfo, (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) ? Q_PRIMITIVE_TYPE : Q_RELOCATABLE_TYPE));
+Q_DECLARE_TYPEINFO(QAbstractEventDispatcher::TimerInfo, Q_PRIMITIVE_TYPE);
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/kernel/qabstractnativeeventfilter.h b/src/corelib/kernel/qabstractnativeeventfilter.h
index a468bffd61..b9a8863bb5 100644
--- a/src/corelib/kernel/qabstractnativeeventfilter.h
+++ b/src/corelib/kernel/qabstractnativeeventfilter.h
@@ -52,11 +52,7 @@ public:
     QAbstractNativeEventFilter();
     virtual ~QAbstractNativeEventFilter();
 
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     virtual bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result) = 0;
-#else
-    virtual bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) = 0;
-#endif
 
 private:
     Q_DISABLE_COPY(QAbstractNativeEventFilter)
diff --git a/src/corelib/kernel/qcoreapplication_win.cpp b/src/corelib/kernel/qcoreapplication_win.cpp
index 524dd5b25b..b3b3e6c4da 100644
--- a/src/corelib/kernel/qcoreapplication_win.cpp
+++ b/src/corelib/kernel/qcoreapplication_win.cpp
@@ -120,28 +120,6 @@ QString QCoreApplicationPrivate::appVersion() const
     return applicationVersion;
 }
 
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
-Q_CORE_EXPORT HINSTANCE qWinAppInst()                // get Windows app handle
-{
-    return GetModuleHandle(0);
-}
-
-Q_CORE_EXPORT HINSTANCE qWinAppPrevInst()                // get Windows prev app handle
-{
-    return 0;
-}
-
-Q_CORE_EXPORT int qWinAppCmdShow()                        // get main window show command
-{
-    STARTUPINFO startupInfo;
-    GetStartupInfo(&startupInfo);
-
-    return (startupInfo.dwFlags & STARTF_USESHOWWINDOW)
-        ? startupInfo.wShowWindow
-        : SW_SHOWDEFAULT;
-}
-#endif
-
 #ifndef QT_NO_QOBJECT
 
 #if defined(Q_OS_WIN) && !defined(QT_NO_DEBUG_STREAM)
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp
index 43872fd027..743df3844c 100644
--- a/src/corelib/kernel/qeventdispatcher_win.cpp
+++ b/src/corelib/kernel/qeventdispatcher_win.cpp
@@ -150,11 +150,7 @@ LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPA
     msg.wParam = wp;
     msg.lParam = lp;
     QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     qintptr result;
-#else
-    long result;
-#endif
     if (!dispatcher) {
         if (message == WM_TIMER)
             KillTimer(hwnd, wp);
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index ea635ce6f1..46ed2fc6f3 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -368,11 +368,6 @@ public:
     }
 #endif //Q_CLANG_QDOC
 
-
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
-    void dumpObjectTree(); // ### Qt 6: remove
-    void dumpObjectInfo(); // ### Qt 6: remove
-#endif
     void dumpObjectTree() const;
     void dumpObjectInfo() const;