Removing ToolBar and StatusBar from mobile app ui template

These are useseless place eaters. If needed, they can easily
be added by the user in Qt Designer.

Reviewed-By: ck

share/qtcreator/templates/mobileapp/mainwindow.ui

@@ -13,9 +13,7 @@
    <string>MainWindow</string>
   </property>
   <widget class="QMenuBar" name="menuBar" />
-  <widget class="QToolBar" name="mainToolBar" />
   <widget class="QWidget" name="centralWidget" />
-  <widget class="QStatusBar" name="statusBar" />
  </widget>
  <layoutDefault spacing="6" margin="11" />
  <pixmapfunction></pixmapfunction>