Unmaximizing output pane should restore previous size.

It was resetting to the default instead.

Task-number: QTCREATORBUG-4849
Change-Id: Ibe3acf7045dd051cca3bff94888b155e00fec81b
Reviewed-on: http://codereview.qt.nokia.com/954
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/coreplugin/outputpanemanager.cpp

@@ -349,8 +349,7 @@ void OutputPaneManager::buttonTriggered()
     int idx = it.key();
 
     if (m_widgetComboBox->itemData(m_widgetComboBox->currentIndex()).toInt() == idx &&
-        OutputPanePlaceHolder::isCurrentVisible()
-        && OutputPanePlaceHolder::getCurrent()->closeable()) {
+        OutputPanePlaceHolder::isCurrentVisible()) {
         // we should toggle and the page is already visible and we are actually closeable
         slotHide();
     } else {
@@ -464,16 +463,6 @@ void OutputPaneManager::togglePage(bool focus)
     }
 }
 
-void OutputPaneManager::setCloseable(bool b)
-{
-    m_closeButton->setVisible(b);
-}
-
-bool OutputPaneManager::closeable()
-{
-    return m_closeButton->isVisibleTo(m_closeButton->parentWidget());
-}
-
 void OutputPaneManager::focusInEvent(QFocusEvent *e)
 {
     if (m_outputWidgetPane->currentWidget())