Remove BuildStepConfigWidget::init()

It serves no purpose anymore.

Change-Id: Ifc15b29c7736bacde3b310e6c4dc980314145d14
Reviewed-on: http://codereview.qt.nokia.com/217
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/projectexplorer/buildstepspage.cpp

@@ -62,7 +62,6 @@ BuildStepsWidgetData::BuildStepsWidgetData(BuildStep *s) :
 {
     widget = s->createConfigWidget();
     Q_ASSERT(widget);
-    widget->init();
 
     detailsWidget = new Utils::DetailsWidget;
     detailsWidget->setWidget(widget);