Remove unused variable/code

Pick-to: 6.5
Change-Id: I8d28db64c1ae2c57c95b2f9f22303d74172226e9
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>

examples/widgets/graphicsview/chip/mainwindow.cpp

@@ -48,7 +48,6 @@ void MainWindow::populateScene()
 
     // Populate scene
     int xx = 0;
-    int nitems = 0;
     for (int i = -11000; i < 11000; i += 110) {
         ++xx;
         int yy = 0;
@@ -61,8 +60,6 @@ void MainWindow::populateScene()
             QGraphicsItem *item = new Chip(color, xx, yy);
             item->setPos(QPointF(i, j));
             scene->addItem(item);
-
-            ++nitems;
         }
     }
 }

examples/widgets/itemviews/chart/pieview.cpp

@@ -311,8 +311,6 @@ void PieView::paintEvent(QPaintEvent *event)
     }
     painter.restore();
 
-    int keyNumber = 0;
-
     for (row = 0; row < model()->rowCount(rootIndex()); ++row) {
         QModelIndex index = model()->index(row, 1, rootIndex());
         double value = model()->data(index).toDouble();
@@ -329,8 +327,6 @@ void PieView::paintEvent(QPaintEvent *event)
             if (currentIndex() == labelIndex)
                 option.state |= QStyle::State_HasFocus;
             itemDelegate()->paint(&painter, option, labelIndex);
-
-            ++keyNumber;
         }
     }
 }