Remove unused menu bar, toolbar and status bar from gui.

mainwindow.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>436</width>
-    <height>511</height>
+    <height>436</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -266,28 +266,6 @@ Source Code: &lt;a href=&quot;http://sf.net/projects/spass&quot;&gt;http://sf.ne
     </item>
    </layout>
   </widget>
-  <widget class="QMenuBar" name="menuBar">
-   <property name="geometry">
-    <rect>
-     <x>0</x>
-     <y>0</y>
-     <width>436</width>
-     <height>25</height>
-    </rect>
-   </property>
-  </widget>
-  <widget class="QStatusBar" name="statusBar"/>
-  <widget class="QToolBar" name="toolBar">
-   <property name="windowTitle">
-    <string>toolBar</string>
-   </property>
-   <attribute name="toolBarArea">
-    <enum>TopToolBarArea</enum>
-   </attribute>
-   <attribute name="toolBarBreak">
-    <bool>false</bool>
-   </attribute>
-  </widget>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <tabstops>