Revert "BuildstepConfigWidgets can be set expanded by default"

This reverts commit deae00a1 for master.

src/plugins/projectexplorer/buildstep.h

@@ -167,7 +167,6 @@ public:
     virtual void init() = 0;
     virtual QString summaryText() const = 0;
     virtual QString displayName() const = 0;
-    virtual bool showExpanded() const { return false; }
 signals:
     void updateSummary();
 };

src/plugins/projectexplorer/buildstepspage.cpp

@@ -159,8 +159,6 @@ void BuildStepListWidget::addBuildStepWidget(int pos, BuildStep *step)
     s.detailsWidget = new Utils::DetailsWidget(this);
     s.detailsWidget->setSummaryText(s.widget->summaryText());
     s.detailsWidget->setWidget(s.widget);
-    if(s.widget->showExpanded())
-        s.detailsWidget->setState(Utils::DetailsWidget::Expanded);
 
     // layout
     Utils::FadingPanel *toolWidget = new Utils::FadingPanel(s.detailsWidget);