[processing] remove statusbar from script editor

Author: alexbruy

python/plugins/processing/ui/DlgScriptEditor.ui

@@ -20,7 +20,6 @@
     </item>
    </layout>
   </widget>
-  <widget class="QStatusBar" name="statusbar"/>
   <widget class="QToolBar" name="toolBar">
    <property name="windowTitle">
     <string>toolBar</string>