Remove todo comments that are no longer relevant.

Task-number: QTBUG-25067

Change-Id: I5d3022a2881a3c6c97429f609fe567bd9970a046
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>

src/gui/image/qpixmap.cpp

@@ -934,8 +934,6 @@ static void sendResizeEvents(QWidget *target)
 QPixmap QPixmap::grabWidget(QObject *widget, const QRect &rectangle)
 {
     QPixmap pixmap;
-    // ### Qt5: should we keep or remove this method?
-    // SC solution would be to install a callback form QtWidgets, but ugly.
     qWarning("QPixmap::grabWidget is deprecated, use QWidget::grab() instead");
     if (!widget)
         return pixmap;

src/gui/image/qpixmap.h

@@ -84,11 +84,11 @@ public:
 
     operator QVariant() const;
 
-    bool isNull() const; // ### Qt 5: make inline
+    bool isNull() const;
     int devType() const;
 
-    int width() const; // ### Qt 5: make inline
-    int height() const; // ### Qt 5: make inline
+    int width() const;
+    int height() const;
     QSize size() const;
     QRect rect() const;
     int depth() const;