QColorDialog: merge two consecutive ifs with the same test

Change-Id: I931bf8f61f95c879522daabf4fc9d6f5801a307b
Reviewed-by: Sérgio Martins <sergio.martins@kdab.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

src/widgets/dialogs/qcolordialog.cpp

@@ -1655,9 +1655,7 @@ void QColorDialogPrivate::initWidgets()
     if (!smallDisplay) {
         leftLay = new QVBoxLayout;
         topLay->addLayout(leftLay);
-    }
 
-    if (!smallDisplay) {
         standard = new QColorWell(q, standardColorRows, colorColumns, QColorDialogOptions::standardColors());
         lblBasicColors = new QLabel(q);
 #ifndef QT_NO_SHORTCUT