diff --git a/examples/qtconcurrent/imagescaling/imagescaling.cpp b/examples/qtconcurrent/imagescaling/imagescaling.cpp
index 01083edb4ee..9cc8ef655d5 100644
--- a/examples/qtconcurrent/imagescaling/imagescaling.cpp
+++ b/examples/qtconcurrent/imagescaling/imagescaling.cpp
@@ -40,8 +40,6 @@
 #include "imagescaling.h"
 #include "math.h"
 
-#ifndef QT_NO_CONCURRENT
-
 const int imageSize = 100;
 
 QImage scale(const QString &imageFileName)
@@ -141,5 +139,3 @@ void Images::finished()
     cancelButton->setEnabled(false);
     pauseButton->setEnabled(false);
 }
-
-#endif // QT_NO_CONCURRENT
diff --git a/examples/qtconcurrent/imagescaling/imagescaling.h b/examples/qtconcurrent/imagescaling/imagescaling.h
index 3c02db05b91..a84e2bdb6d6 100644
--- a/examples/qtconcurrent/imagescaling/imagescaling.h
+++ b/examples/qtconcurrent/imagescaling/imagescaling.h
@@ -43,8 +43,6 @@
 #include <QtWidgets>
 #include <QtConcurrent>
 
-#ifndef QT_NO_CONCURRENT
-
 class Images : public QWidget
 {
 Q_OBJECT
@@ -65,18 +63,4 @@ private:
     QFutureWatcher<QImage> *imageScaling;
 };
 
-#else
-
-// Dummy class required because QT_NO_CONCURRENT is not set when moc is run.
-class Images : public QWidget
-{
-Q_OBJECT
-public Q_SLOTS:
-    void open() {}
-    void showImage(int) {}
-    void finished() {}
-};
-
-#endif // QT_NO_CONCURRENT
-
 #endif // IMAGESCALING_H
diff --git a/examples/qtconcurrent/imagescaling/main.cpp b/examples/qtconcurrent/imagescaling/main.cpp
index ccdea2e7716..442c8a47716 100644
--- a/examples/qtconcurrent/imagescaling/main.cpp
+++ b/examples/qtconcurrent/imagescaling/main.cpp
@@ -40,8 +40,6 @@
 #include <QtWidgets>
 #include <QtConcurrent>
 
-#ifndef QT_NO_CONCURRENT
-
 #include "imagescaling.h"
 
 int main(int argc, char *argv[])
@@ -53,21 +51,3 @@ int main(int argc, char *argv[])
 
     return app.exec();
 }
-
-#else
-
-int main(int argc, char *argv[])
-{
-    QApplication app(argc, argv);
-    QString text("Qt Concurrent is not supported on this platform");
-
-    QLabel *label = new QLabel(text);
-    label->setWordWrap(true);
-
-    label->show();
-    qDebug() << text;
-
-    app.exec();
-}
-
-#endif
diff --git a/examples/qtconcurrent/progressdialog/main.cpp b/examples/qtconcurrent/progressdialog/main.cpp
index c646105db69..01d4aef2566 100644
--- a/examples/qtconcurrent/progressdialog/main.cpp
+++ b/examples/qtconcurrent/progressdialog/main.cpp
@@ -41,8 +41,6 @@
 #include <QtWidgets>
 #include <QtConcurrent>
 
-#ifndef QT_NO_CONCURRENT
-
 using namespace QtConcurrent;
 
 const int iterations = 20;
@@ -88,22 +86,3 @@ int main(int argc, char **argv)
     // Query the future to check if was canceled.
     qDebug() << "Canceled?" << futureWatcher.future().isCanceled();
 }
-
-#else
-
-int main(int argc, char *argv[])
-{
-    QApplication app(argc, argv);
-    QString text("Qt Concurrent is not yet supported on this platform");
-
-    QLabel *label = new QLabel(text);
-    label->setWordWrap(true);
-
-    label->show();
-    qDebug() << text;
-
-    app.exec();
-}
-
-#endif
-
diff --git a/examples/qtconcurrent/runfunction/main.cpp b/examples/qtconcurrent/runfunction/main.cpp
index 0e62bd0a75a..85c5e1267a2 100644
--- a/examples/qtconcurrent/runfunction/main.cpp
+++ b/examples/qtconcurrent/runfunction/main.cpp
@@ -44,8 +44,6 @@
 #include <qtconcurrentrun.h>
 #include <QApplication>
 
-#ifndef QT_NO_CONCURRENT
-
 using namespace QtConcurrent;
 
 void hello(QString name)
@@ -61,23 +59,3 @@ int main(int argc, char **argv)
     f1.waitForFinished();
     f2.waitForFinished();
 }
-
-#else
-
-#include <QLabel>
-
-int main(int argc, char *argv[])
-{
-    QApplication app(argc, argv);
-    QString text("Qt Concurrent is not yet supported on this platform");
-
-    QLabel *label = new QLabel(text);
-    label->setWordWrap(true);
-
-    label->show();
-    qDebug() << text;
-
-    app.exec();
-}
-
-#endif
diff --git a/examples/qtconcurrent/wordcount/main.cpp b/examples/qtconcurrent/wordcount/main.cpp
index 635951fd4aa..408e92dbb38 100644
--- a/examples/qtconcurrent/wordcount/main.cpp
+++ b/examples/qtconcurrent/wordcount/main.cpp
@@ -50,8 +50,6 @@
 
 #include <qtconcurrentmap.h>
 
-#ifndef QT_NO_CONCURRENT
-
 using namespace QtConcurrent;
 
 /*
@@ -155,23 +153,3 @@ int main(int argc, char** argv)
     }
     qDebug() << "MapReduce speedup x" << ((double)singleThreadTime - (double)mapReduceTime) / (double)mapReduceTime + 1;
 }
-
-#else
-
-#include <QLabel>
-
-int main(int argc, char *argv[])
-{
-    QApplication app(argc, argv);
-    QString text("Qt Concurrent is not yet supported on this platform");
-
-    QLabel *label = new QLabel(text);
-    label->setWordWrap(true);
-
-    label->show();
-    qDebug() << text;
-
-    app.exec();
-}
-
-#endif